Esophageal cancer: Difference between revisions

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The two main [[Histopathology|sub-types]] of the disease are esophageal [[squamous-cell carcinoma]] (often abbreviated to ESCC),<ref>Even by those using the [[British English]] spelling "oesophagus"</ref> which is more common in the [[developing world]], and esophageal [[adenocarcinoma]] (EAC), which is more common in the [[developed world]].<ref name=WCR2014>{{cite book| vauthors = Montgomery EA, Basman FT, Brennan P, Malekzadeh R | title=World Cancer Report 2014| date=2014| veditors = Stewart BW, Wild CP | publisher=World Health Organization| isbn=978-92-832-0429-9 | chapter=Oesophageal Cancer | pages=528–543 }}</ref> A number of less common types also occur.<ref name=WCR2014/> Squamous-cell carcinoma arises from the [[squamous epithelium|epithelial cells]] that line the esophagus.<ref>{{cite book| vauthors = Kelsen D |title=Gastrointestinal oncology: principles and practices|date=2007|publisher=Lippincott Williams & Wilkins|location=Philadelphia, Pa.|isbn=978-0-7817-7617-2|page=4|url=https://books.google.com/books?id=5ULRpwtyxxMC&pg=PA4|edition=2nd|url-status=live|archive-url=https://web.archive.org/web/20150925153342/https://books.google.com/books?id=5ULRpwtyxxMC&pg=PA4|archive-date=2015-09-25}}</ref> Adenocarcinoma arises from [[glandular]] cells present in the lower third of the esophagus, often where they have already [[Intestinal metaplasia|transformed to intestinal cell type]] (a condition known as [[Barrett's esophagus]]).<ref name=WCR2014/><ref>{{cite book|veditors = Schottenfeld D, Fraumeni J|title=Cancer epidemiology and prevention|date=2006|publisher=Oxford University Press|location=Oxford|isbn=978-0-19-974797-9|page=697|url=https://books.google.com/books?id=qfN8Y1_lbDYC&pg=PA697|edition=3rd|url-status=live|archive-url=https://web.archive.org/web/20151031153057/https://books.google.com/books?id=qfN8Y1_lbDYC&pg=PA697|archive-date=2015-10-31}}</ref>
The two main [[Histopathology|sub-types]] of the disease are esophageal [[squamous-cell carcinoma]] (often abbreviated to ESCC),<ref>Even by those using the [[British English]] spelling "oesophagus"</ref> which is more common in the [[developing world]], and esophageal [[adenocarcinoma]] (EAC), which is more common in the [[developed world]].<ref name=WCR2014>{{cite book| vauthors = Montgomery EA, Basman FT, Brennan P, Malekzadeh R | title=World Cancer Report 2014| date=2014| veditors = Stewart BW, Wild CP | publisher=World Health Organization| isbn=978-92-832-0429-9 | chapter=Oesophageal Cancer | pages=528–543 }}</ref> A number of less common types also occur.<ref name=WCR2014/> Squamous-cell carcinoma arises from the [[squamous epithelium|epithelial cells]] that line the esophagus.<ref>{{cite book| vauthors = Kelsen D |title=Gastrointestinal oncology: principles and practices|date=2007|publisher=Lippincott Williams & Wilkins|location=Philadelphia, Pa.|isbn=978-0-7817-7617-2|page=4|url=https://books.google.com/books?id=5ULRpwtyxxMC&pg=PA4|edition=2nd|url-status=live|archive-url=https://web.archive.org/web/20150925153342/https://books.google.com/books?id=5ULRpwtyxxMC&pg=PA4|archive-date=2015-09-25}}</ref> Adenocarcinoma arises from [[glandular]] cells present in the lower third of the esophagus, often where they have already [[Intestinal metaplasia|transformed to intestinal cell type]] (a condition known as [[Barrett's esophagus]]).<ref name=WCR2014/><ref>{{cite book|veditors = Schottenfeld D, Fraumeni J|title=Cancer epidemiology and prevention|date=2006|publisher=Oxford University Press|location=Oxford|isbn=978-0-19-974797-9|page=697|url=https://books.google.com/books?id=qfN8Y1_lbDYC&pg=PA697|edition=3rd|url-status=live|archive-url=https://web.archive.org/web/20151031153057/https://books.google.com/books?id=qfN8Y1_lbDYC&pg=PA697|archive-date=2015-10-31}}</ref>


Causes of the squamous-cell type include [[Tobacco smoking|tobacco]], [[Alcoholic beverage|alcohol]], very hot drinks, poor diet, and chewing [[areca nut|betel nut]].<ref name=Zhang2012/><ref name=Akhtar-2013/> The most common causes of the adenocarcinoma type are smoking tobacco, [[obesity]], and [[acid reflux]].<ref name=Zhang2012>{{cite journal | vauthors = Zhang HZ, Jin GF, Shen HB | title = Epidemiologic differences in esophageal cancer between Asian and Western populations | journal = Chinese Journal of Cancer | volume = 31 | issue = 6 | pages = 281–286 | date = June 2012 | pmid = 22507220 | pmc = 3777490 | doi = 10.5732/cjc.011.10390 | doi-broken-date = 2 March 2025 }}</ref> In addition, for patients with [[achalasia]], [[candidiasis]] (overgrowth of the esophagus with the fungus [[Candida albicans|candida]]) is the most important risk factor.<ref>{{cite journal | vauthors = Guo X, Lam SY, Janmaat VT, de Jonge PJ, Hansen BE, Leeuwenburgh I, Peppelenbosch MP, Spaander MC, Fuhler GM| title = Esophageal Candida Infection and Esophageal Cancer Risk in Patients With Achalasia. | journal = JAMA Netw Open | volume = 8 | issue = 1  | pages = e2454685 | date = January 2025 | pmid = 39808429 | pmc = 11733698 | doi = 10.1001/jamanetworkopen.2024.54685 | doi-access = free}}</ref>
Causes of the squamous-cell type include [[Tobacco smoking|tobacco]], [[Alcoholic beverage|alcohol]], very hot drinks, poor diet, and chewing [[areca nut|betel nut]].<ref name=Zhang2012/><ref name=Akhtar-2013/> The most common causes of the adenocarcinoma type are smoking tobacco, [[obesity]], and [[acid reflux]].<ref name=Zhang2012>{{cite journal | vauthors = Zhang HZ, Jin GF, Shen HB | title = Epidemiologic differences in esophageal cancer between Asian and Western populations | journal = Chinese Journal of Cancer | volume = 31 | issue = 6 | pages = 281–286 | date = June 2012 | pmid = 22507220 | pmc = 3777490 | doi = 10.5732/cjc.011.10390 }}</ref> In addition, for patients with [[achalasia]], [[candidiasis]] (overgrowth of the esophagus with the fungus [[Candida albicans|candida]]) is the most important risk factor.<ref>{{cite journal | vauthors = Guo X, Lam SY, Janmaat VT, de Jonge PJ, Hansen BE, Leeuwenburgh I, Peppelenbosch MP, Spaander MC, Fuhler GM| title = Esophageal Candida Infection and Esophageal Cancer Risk in Patients With Achalasia. | journal = JAMA Netw Open | volume = 8 | issue = 1  | pages = e2454685 | date = January 2025 | pmid = 39808429 | pmc = 11733698 | doi = 10.1001/jamanetworkopen.2024.54685 | doi-access = free}}</ref>


The disease is diagnosed by [[biopsy]] done by an [[endoscope]] (a [[fiberoptic]] camera).<ref name=Sta2013>{{cite journal | vauthors = Stahl M, Mariette C, Haustermans K, Cervantes A, Arnold D | title = Oesophageal cancer: ESMO Clinical Practice Guidelines for diagnosis, treatment and follow-up | journal = Annals of Oncology | volume = 24 | issue = Suppl 6 | pages = vi51–vi56 | date = October 2013 | pmid = 24078662 | doi = 10.1093/annonc/mdt342 | doi-access =  }}</ref> Prevention includes stopping smoking and eating a [[healthy diet]].<ref name=Ferri2012/><ref name=WCR2014/> Treatment is based on the [[cancer staging|cancer's stage]] and location, together with the person's general condition and individual preferences.<ref name=Sta2013/> Small localized squamous-cell cancers may be treated with [[surgery]] alone with the hope of a [[curative care|cure]].<ref name=Sta2013/> In most other cases, [[chemotherapy]] with or without [[radiation therapy]] is used along with surgery.<ref name=Sta2013/> Larger tumors may have their growth slowed with chemotherapy and radiation therapy.<ref name=WCR2014/> In the presence of extensive disease or if the affected person is not fit enough to undergo surgery, [[palliative care]] is often recommended.<ref name=Sta2013/>
The disease is diagnosed by [[biopsy]] done by an [[endoscope]] (a [[fiberoptic]] camera).<ref name=Sta2013>{{cite journal | vauthors = Stahl M, Mariette C, Haustermans K, Cervantes A, Arnold D | title = Oesophageal cancer: ESMO Clinical Practice Guidelines for diagnosis, treatment and follow-up | journal = Annals of Oncology | volume = 24 | issue = Suppl 6 | pages = vi51–vi56 | date = October 2013 | pmid = 24078662 | doi = 10.1093/annonc/mdt342 | doi-access =  }}</ref> Prevention includes stopping smoking and eating a [[healthy diet]].<ref name=Ferri2012/><ref name=WCR2014/> Treatment is based on the [[cancer staging|cancer's stage]] and location, together with the person's general condition and individual preferences.<ref name=Sta2013/> Small localized squamous-cell cancers may be treated with [[surgery]] alone with the hope of a [[curative care|cure]].<ref name=Sta2013/> In most other cases, [[chemotherapy]] with or without [[radiation therapy]] is used along with surgery.<ref name=Sta2013/> Larger tumors may have their growth slowed with chemotherapy and radiation therapy.<ref name=WCR2014/> In the presence of extensive disease or if the affected person is not fit enough to undergo surgery, [[palliative care]] is often recommended.<ref name=Sta2013/>


As of 2018, esophageal cancer was the eighth-most common cancer globally with 572,000 new cases during the year. It caused about 509,000 deaths that year, up from 345,000 in 1990.<ref name = global2018>{{cite web |title=Esophageal Cancer Factsheet |url=http://gco.iarc.fr/today/data/factsheets/cancers/6-Oesophagus-fact-sheet.pdf |website=Global Cancer Observatory |access-date=8 November 2019}}</ref><ref name=Loz2012>{{cite journal | vauthors = Lozano R, Naghavi M, Foreman K, Lim S, Shibuya K, Aboyans V, Abraham J, Adair T, Aggarwal R, Ahn SY, Alvarado M, Anderson HR, Anderson LM, Andrews KG, Atkinson C, Baddour LM, Barker-Collo S, Bartels DH, Bell ML, Benjamin EJ, Bennett D, Bhalla K, Bikbov B, Bin Abdulhak A, Birbeck G, Blyth F, Bolliger I, Boufous S, Bucello C, Burch M, Burney P, Carapetis J, Chen H, Chou D, Chugh SS, Coffeng LE, Colan SD, Colquhoun S, Colson KE, Condon J, Connor MD, Cooper LT, Corriere M, Cortinovis M, de Vaccaro KC, Couser W, Cowie BC, Criqui MH, Cross M, Dabhadkar KC, Dahodwala N, De Leo D, Degenhardt L, Delossantos A, Denenberg J, Des Jarlais DC, Dharmaratne SD, Dorsey ER, Driscoll T, Duber H, Ebel B, Erwin PJ, Espindola P, Ezzati M, Feigin V, Flaxman AD, Forouzanfar MH, Fowkes FG, Franklin R, Fransen M, Freeman MK, Gabriel SE, Gakidou E, Gaspari F, Gillum RF, Gonzalez-Medina D, Halasa YA, Haring D, Harrison JE, Havmoeller R, Hay RJ, Hoen B, Hotez PJ, Hoy D, Jacobsen KH, James SL, Jasrasaria R, Jayaraman S, Johns N, Karthikeyan G, Kassebaum N, Keren A, Khoo JP, Knowlton LM, Kobusingye O, Koranteng A, Krishnamurthi R, Lipnick M, Lipshultz SE, Ohno SL, Mabweijano J, MacIntyre MF, Mallinger L, March L, Marks GB, Marks R, Matsumori A, Matzopoulos R, Mayosi BM, McAnulty JH, McDermott MM, McGrath J, Mensah GA, Merriman TR, Michaud C, Miller M, Miller TR, Mock C, Mocumbi AO, Mokdad AA, Moran A, Mulholland K, Nair MN, Naldi L, Narayan KM, Nasseri K, Norman P, O'Donnell M, Omer SB, Ortblad K, Osborne R, Ozgediz D, Pahari B, Pandian JD, Rivero AP, Padilla RP, Perez-Ruiz F, Perico N, Phillips D, Pierce K, Pope CA, Porrini E, Pourmalek F, Raju M, Ranganathan D, Rehm JT, Rein DB, Remuzzi G, Rivara FP, Roberts T, De León FR, Rosenfeld LC, Rushton L, Sacco RL, Salomon JA, Sampson U, Sanman E, Schwebel DC, Segui-Gomez M, Shepard DS, Singh D, Singleton J, Sliwa K, Smith E, Steer A, Taylor JA, Thomas B, Tleyjeh IM, Towbin JA, Truelsen T, Undurraga EA, Venketasubramanian N, Vijayakumar L, Vos T, Wagner GR, Wang M, Wang W, Watt K, Weinstock MA, Weintraub R, Wilkinson JD, Woolf AD, Wulf S, Yeh PH, Yip P, Zabetian A, Zheng ZJ, Lopez AD, Murray CJ, AlMazroa MA, Memish ZA | display-authors = 6 | title = Global and regional mortality from 235 causes of death for 20 age groups in 1990 and 2010: a systematic analysis for the Global Burden of Disease Study 2010 | journal = Lancet | volume = 380 | issue = 9859 | pages = 2095–2128 | date = December 2012 | pmid = 23245604 | doi = 10.1016/S0140-6736(12)61728-0 | pmc = 10790329 | hdl-access = free | s2cid = 1541253 | hdl = 10536/DRO/DU:30050819 | url = https://zenodo.org/record/2557786 }}</ref> Rates vary widely among countries, with about half of all cases occurring in China.<ref name=WCR2014/> It is around three times more common in men than in women.<ref name=WCR2014/> Outcomes are related to the extent of the disease and [[Comorbidity|other medical conditions]], but generally tend to be fairly poor, as diagnosis is often late.<ref name=WCR2014/><ref name=Enzinger>{{cite journal | vauthors = Enzinger PC, Mayer RJ | title = Esophageal cancer | journal = The New England Journal of Medicine | volume = 349 | issue = 23 | pages = 2241–2252 | date = December 2003 | pmid = 14657432 | doi = 10.1056/NEJMra035010 | url = http://gastro.ucsd.edu/fellowship/materials/Documents/Esophageal%20Cancer/NEJM%202003%20Esophageal%20CA%20.pdf | url-status = dead | archive-url = https://web.archive.org/web/20140714162737/http://gastro.ucsd.edu/fellowship/materials/Documents/Esophageal%20Cancer/NEJM%202003%20Esophageal%20CA%20.pdf | archive-date = 2014-07-14 }}</ref> [[Five-year survival rates]] are around 13% to 18%.<ref name=Ferri2012>{{cite book | veditors = Ferri FF |chapter= Tumors |title= Ferri's clinical advisor 2013 |date=2012 |publisher= Mosby (Elsevier) |location= Philadelphia, PA |isbn= 978-0-323-08373-7 |pages= 389–391 |chapter-url= https://books.google.com/books?id=OR3VERnvzzEC&pg=PA391 |url-status=live |archive-url= https://web.archive.org/web/20150919023405/https://books.google.com/books?id=OR3VERnvzzEC&pg=PA391 |archive-date= 2015-09-19 }}</ref><ref name=SEER2014>{{cite web|title=SEER Stat Fact Sheets: Esophageal Cancer|url=http://seer.cancer.gov/statfacts/html/esoph.html|website=National Cancer Institute|access-date=18 June 2014|url-status=live|archive-url=https://web.archive.org/web/20140706140744/http://seer.cancer.gov/statfacts/html/esoph.html|archive-date=6 July 2014}}</ref>
As of 2018, esophageal cancer was the eighth-most common cancer globally with 572,000 new cases during the year. It caused about 509,000 deaths that year, up from 345,000 in 1990.<ref name = global2018>{{cite web |title=Esophageal Cancer Factsheet |url=http://gco.iarc.fr/today/data/factsheets/cancers/6-Oesophagus-fact-sheet.pdf |website=Global Cancer Observatory |access-date=8 November 2019}}</ref><ref name=Loz2012>{{cite journal | vauthors = Lozano R, Naghavi M, Foreman K, Lim S, Shibuya K, Aboyans V, Abraham J, Adair T, Aggarwal R, Ahn SY, Alvarado M, Anderson HR, Anderson LM, Andrews KG, Atkinson C, Baddour LM, Barker-Collo S, Bartels DH, Bell ML, Benjamin EJ, Bennett D, Bhalla K, Bikbov B, Bin Abdulhak A, Birbeck G, Blyth F, Bolliger I, Boufous S, Bucello C, Burch M, Burney P, Carapetis J, Chen H, Chou D, Chugh SS, Coffeng LE, Colan SD, Colquhoun S, Colson KE, Condon J, Connor MD, Cooper LT, Corriere M, Cortinovis M, de Vaccaro KC, Couser W, Cowie BC, Criqui MH, Cross M, Dabhadkar KC, Dahodwala N, De Leo D, Degenhardt L, Delossantos A, Denenberg J, Des Jarlais DC, Dharmaratne SD, Dorsey ER, Driscoll T, Duber H, Ebel B, Erwin PJ, Espindola P, Ezzati M, Feigin V, Flaxman AD, Forouzanfar MH, Fowkes FG, Franklin R, Fransen M, Freeman MK, Gabriel SE, Gakidou E, Gaspari F, Gillum RF, Gonzalez-Medina D, Halasa YA, Haring D, Harrison JE, Havmoeller R, Hay RJ, Hoen B, Hotez PJ, Hoy D, Jacobsen KH, James SL, Jasrasaria R, Jayaraman S, Johns N, Karthikeyan G, Kassebaum N, Keren A, Khoo JP, Knowlton LM, Kobusingye O, Koranteng A, Krishnamurthi R, Lipnick M, Lipshultz SE, Ohno SL, Mabweijano J, MacIntyre MF, Mallinger L, March L, Marks GB, Marks R, Matsumori A, Matzopoulos R, Mayosi BM, McAnulty JH, McDermott MM, McGrath J, Mensah GA, Merriman TR, Michaud C, Miller M, Miller TR, Mock C, Mocumbi AO, Mokdad AA, Moran A, Mulholland K, Nair MN, Naldi L, Narayan KM, Nasseri K, Norman P, O'Donnell M, Omer SB, Ortblad K, Osborne R, Ozgediz D, Pahari B, Pandian JD, Rivero AP, Padilla RP, Perez-Ruiz F, Perico N, Phillips D, Pierce K, Pope CA, Porrini E, Pourmalek F, Raju M, Ranganathan D, Rehm JT, Rein DB, Remuzzi G, Rivara FP, Roberts T, De León FR, Rosenfeld LC, Rushton L, Sacco RL, Salomon JA, Sampson U, Sanman E, Schwebel DC, Segui-Gomez M, Shepard DS, Singh D, Singleton J, Sliwa K, Smith E, Steer A, Taylor JA, Thomas B, Tleyjeh IM, Towbin JA, Truelsen T, Undurraga EA, Venketasubramanian N, Vijayakumar L, Vos T, Wagner GR, Wang M, Wang W, Watt K, Weinstock MA, Weintraub R, Wilkinson JD, Woolf AD, Wulf S, Yeh PH, Yip P, Zabetian A, Zheng ZJ, Lopez AD, Murray CJ, AlMazroa MA, Memish ZA | display-authors = 6 | title = Global and regional mortality from 235 causes of death for 20 age groups in 1990 and 2010: a systematic analysis for the Global Burden of Disease Study 2010 | journal = Lancet | volume = 380 | issue = 9859 | pages = 2095–2128 | date = December 2012 | pmid = 23245604 | doi = 10.1016/S0140-6736(12)61728-0 | pmc = 10790329 | hdl-access = free | s2cid = 1541253 | hdl = 10536/DRO/DU:30050819 | url = https://zenodo.org/record/2557786 }}</ref> Rates vary widely among countries, with about half of all cases occurring in China.<ref name=WCR2014/> It is around three times more common in men than in women.<ref name=WCR2014/> Outcomes are related to the extent of the disease and [[Comorbidity|other medical conditions]], but generally tend to be fairly poor, as diagnosis is often late.<ref name=WCR2014/><ref name=Enzinger>{{cite journal | vauthors = Enzinger PC, Mayer RJ | title = Esophageal cancer | journal = The New England Journal of Medicine | volume = 349 | issue = 23 | pages = 2241–2252 | date = December 2003 | pmid = 14657432 | doi = 10.1056/NEJMra035010 | url = http://gastro.ucsd.edu/fellowship/materials/Documents/Esophageal%20Cancer/NEJM%202003%20Esophageal%20CA%20.pdf | archive-url = https://web.archive.org/web/20140714162737/http://gastro.ucsd.edu/fellowship/materials/Documents/Esophageal%20Cancer/NEJM%202003%20Esophageal%20CA%20.pdf | archive-date = 2014-07-14 }}</ref> [[Five-year survival rates]] are around 13% to 18%.<ref name=Ferri2012>{{cite book | veditors = Ferri FF |chapter= Tumors |title= Ferri's clinical advisor 2013 |date=2012 |publisher= Mosby (Elsevier) |location= Philadelphia, PA |isbn= 978-0-323-08373-7 |pages= 389–391 |chapter-url= https://books.google.com/books?id=OR3VERnvzzEC&pg=PA391 |url-status=live |archive-url= https://web.archive.org/web/20150919023405/https://books.google.com/books?id=OR3VERnvzzEC&pg=PA391 |archive-date= 2015-09-19 }}</ref><ref name=SEER2014>{{cite web|title=SEER Stat Fact Sheets: Esophageal Cancer|url=http://seer.cancer.gov/statfacts/html/esoph.html|website=National Cancer Institute|access-date=18 June 2014|url-status=live|archive-url=https://web.archive.org/web/20140706140744/http://seer.cancer.gov/statfacts/html/esoph.html|archive-date=6 July 2014}}</ref>


==Signs and symptoms==
==Signs and symptoms==
Prominent symptoms usually do not appear until the cancer has [[Infiltration (medical)|infiltrated]] over 60% of the circumference of the esophageal tube, by which time the tumor is already in an [[Cancer staging|advanced stage]].<ref name=Harrison>{{cite book | vauthors = Mayer RJ | veditors=Longo DL, Fauci AS, Kasper DL, Hauser SL, Jameson JL, Loscalzo J |title=Harrison's principles of internal medicine |pages=764–5| volume=1 | publisher=McGraw-Hill Medical Publishing Division |location=New York |year=2008 |edition=18th |chapter=Gastrointestinal Tract Cancer |isbn=978-0-07-174889-6}}</ref> Onset of symptoms is usually caused by [[Stenosis|narrowing of the tube]] due to the physical presence of the tumor.<ref name="Cheifetz-2011">{{cite book| vauthors = Cheifetz AS, Brown A, Curry M, Moss AC | title=Oxford American Handbook of Gastroenterology and Hepatology| url=https://archive.org/details/oxfordamericanha00adam| url-access=limited| page=[https://archive.org/details/oxfordamericanha00adam/page/n136 106] |date=2011|publisher=Oxford University Press|isbn=978-0-19-983012-1}}</ref>
Prominent symptoms usually do not appear until the cancer has [[Infiltration (medical)|infiltrated]] over 60% of the circumference of the esophageal tube, by which time the tumor is already in an [[Cancer staging|advanced stage]].<ref name=Harrison>{{cite book | vauthors = Mayer RJ | veditors=Longo DL, Fauci AS, Kasper DL, Hauser SL, Jameson JL, Loscalzo J |title=Harrison's principles of internal medicine |pages=764–5| volume=1 | publisher=McGraw-Hill Medical Publishing Division |location=New York |year=2008 |edition=18th |chapter=Gastrointestinal Tract Cancer |isbn=978-0-07-174889-6}}</ref> Onset of symptoms is usually caused by [[Stenosis|narrowing of the tube]] due to the physical presence of the tumor.<ref name="Cheifetz-2011">{{cite book| vauthors = Cheifetz AS, Brown A, Curry M, Moss AC | title=Oxford American Handbook of Gastroenterology and Hepatology| url=https://archive.org/details/oxfordamericanha00adam| url-access=limited| page=[https://archive.org/details/oxfordamericanha00adam/page/n136 106] |date=2011|publisher=Oxford University Press|isbn=978-0-19-983012-1}}</ref>


The first and the most common symptom is usually [[difficulty in swallowing]], which is often experienced first with solid foods and later with softer foods and liquids.<ref name=Ferri2012/> [[Odynophagia|Pain when swallowing]] is less usual at first.<ref name=Ferri2012/> [[Weight loss]] is often an initial sign in cases of squamous-cell carcinoma, though not usually in cases of adenocarcinoma.<ref name="Pennathur-2013">{{cite journal | vauthors = Pennathur A, Gibson MK, Jobe BA, Luketich JD | title = Oesophageal carcinoma | journal = Lancet | volume = 381 | issue = 9864 | pages = 400–412 | date = February 2013 | pmid = 23374478 | doi = 10.1016/S0140-6736(12)60643-6 | s2cid = 13550805 | doi-access = free }}</ref> Eventual weight loss due to reduced appetite and [[malnutrition|undernutrition]] is common.<ref name="Yamada-2011">{{cite book| vauthors = Yamada T |title=Textbook of Gastroenterology|url=https://books.google.com/books?id=69Ttbl6ewp8C&pg=PT1590|year=2011|publisher=John Wiley & Sons|isbn=978-1-4443-5941-1|pages=1590–1|url-status=live|archive-url=https://web.archive.org/web/20150920120659/https://books.google.com/books?id=69Ttbl6ewp8C&pg=PT1590|archive-date=2015-09-20}}</ref> [[Cancer pain|Pain]] behind the [[breastbone]] or in the [[epigastric|region around the stomach]]  often feels like [[heartburn]]. The pain can frequently be severe, worsening when food of any sort is swallowed. Another sign may be an unusually husky, raspy, or hoarse-sounding cough, a result of the tumor affecting the [[recurrent laryngeal nerve]].
The first and the most common symptom is usually [[difficulty in swallowing]], which is often experienced first with solid foods and later with softer foods and liquids.<ref name=Ferri2012/> [[Odynophagia|Pain when swallowing]] is less usual at first.<ref name=Ferri2012/> [[Weight loss]] is often an initial sign in cases of squamous-cell carcinoma, though not usually in cases of adenocarcinoma.<ref name="Pennathur-2013">{{cite journal | vauthors = Pennathur A, Gibson MK, Jobe BA, Luketich JD | title = Oesophageal carcinoma | journal = Lancet | volume = 381 | issue = 9864 | pages = 400–412 | date = February 2013 | pmid = 23374478 | doi = 10.1016/S0140-6736(12)60643-6 | bibcode = 2013Lanc..381..400P | s2cid = 13550805 | doi-access = free }}</ref> Eventual weight loss due to reduced appetite and [[malnutrition|undernutrition]] is common.<ref name="Yamada-2011">{{cite book| vauthors = Yamada T |title=Textbook of Gastroenterology|url=https://books.google.com/books?id=69Ttbl6ewp8C&pg=PT1590|year=2011|publisher=John Wiley & Sons|isbn=978-1-4443-5941-1|pages=1590–1|url-status=live|archive-url=https://web.archive.org/web/20150920120659/https://books.google.com/books?id=69Ttbl6ewp8C&pg=PT1590|archive-date=2015-09-20}}</ref> [[Cancer pain|Pain]] behind the [[breastbone]] or in the [[epigastric|region around the stomach]]  often feels like [[heartburn]]. The pain can frequently be severe, worsening when food of any sort is swallowed. Another sign may be an unusually husky, raspy, or hoarse-sounding cough, a result of the tumor affecting the [[recurrent laryngeal nerve]].


The presence of the tumor may disrupt the normal [[peristalsis|contractions of the esophagus]] when swallowing. This can lead to [[nausea]] and [[vomiting]], [[Regurgitation (digestion)|regurgitation]] of food and coughing.<ref name=Harrison/> There is also an increased risk of [[aspiration pneumonia]]<ref name=Harrison/> due to food entering the airways through the abnormal connections ([[fistula]]s) that may develop between the esophagus and the [[Vertebrate trachea|trachea]] (windpipe).<ref name=Enzinger/> Early signs of this serious complication may be coughing on drinking or eating.<ref name="Gerdes-2002">{{cite book| vauthors = Gerdes H, Ferguson MK | veditors = Posner MC, Vokes EE, Weichselbaum RR |title=Cancer of the Upper Gastrointestinal Tract|chapter-url=https://books.google.com/books?id=h0NQECKu7Y4C&pg=PA184|year=2002|publisher=PMPH-USA|isbn=978-1-55009-101-4|page=184|chapter=Palliation of Esophageal Cancer|url-status=live|archive-url=https://web.archive.org/web/20151030043810/https://books.google.com/books?id=h0NQECKu7Y4C&pg=PA184|archive-date=2015-10-30}}</ref> The tumor surface may be fragile and [[hemorrhage|bleed]], causing [[hematemesis|vomiting of blood]]. Compression of local structures occurs in advanced disease, leading to such problems as [[stridor|upper airway obstruction]] and [[superior vena cava syndrome]]. [[Hypercalcemia]] (excess calcium in the blood) may occur.<ref name=Harrison/>
The presence of the tumor may disrupt the normal [[peristalsis|contractions of the esophagus]] when swallowing. This can lead to [[nausea]] and [[vomiting]], [[Regurgitation (digestion)|regurgitation]] of food and coughing.<ref name=Harrison/> There is also an increased risk of [[aspiration pneumonia]]<ref name=Harrison/> due to food entering the airways through the abnormal connections ([[fistula]]s) that may develop between the esophagus and the [[Vertebrate trachea|trachea]] (windpipe).<ref name=Enzinger/> Early signs of this serious complication may be coughing on drinking or eating.<ref name="Gerdes-2002">{{cite book| vauthors = Gerdes H, Ferguson MK | veditors = Posner MC, Vokes EE, Weichselbaum RR |title=Cancer of the Upper Gastrointestinal Tract|chapter-url=https://books.google.com/books?id=h0NQECKu7Y4C&pg=PA184|year=2002|publisher=PMPH-USA|isbn=978-1-55009-101-4|page=184|chapter=Palliation of Esophageal Cancer|url-status=live|archive-url=https://web.archive.org/web/20151030043810/https://books.google.com/books?id=h0NQECKu7Y4C&pg=PA184|archive-date=2015-10-30}}</ref> The tumor surface may be fragile and [[hemorrhage|bleed]], causing [[hematemesis|vomiting of blood]]. Compression of local structures occurs in advanced disease, leading to such problems as [[stridor|upper airway obstruction]] and [[superior vena cava syndrome]]. [[Hypercalcemia]] (excess calcium in the blood) may occur.<ref name=Harrison/>
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The two major risk factors for esophageal squamous-cell carcinoma are tobacco (smoking or [[Chewing tobacco|chewing]]) and alcohol.<ref name=WCR2014/> The combination of tobacco and alcohol has a strong [[synergistic]] effect.<ref>{{cite journal | vauthors = Prabhu A, Obi KO, Rubenstein JH | title = The synergistic effects of alcohol and tobacco consumption on the risk of esophageal squamous cell carcinoma: a meta-analysis | journal = The American Journal of Gastroenterology | volume = 109 | issue = 6 | pages = 822–827 | date = June 2014 | pmid = 24751582 | doi = 10.1038/ajg.2014.71 | s2cid = 205103765 }}</ref> Some data suggest that about half of all cases are due to tobacco and about one-third to alcohol, while over three-quarters of the cases in men are due to the combination of smoking and heavy drinking.<ref name=WCR2014/> [[Alcohol and cancer|Risks associated with alcohol]] appear to be linked to its [[Acetaldehyde#Carcinogenicity|aldehyde metabolite]] and to mutations in certain [[Acetaldehyde dehydrogenase|related enzymes]].<ref name="Pennathur-2013"/> Such metabolic [[Polymorphism (biology)#Genetics|variants]] are relatively common in Asia.<ref name=WCR2014/>
The two major risk factors for esophageal squamous-cell carcinoma are tobacco (smoking or [[Chewing tobacco|chewing]]) and alcohol.<ref name=WCR2014/> The combination of tobacco and alcohol has a strong [[synergistic]] effect.<ref>{{cite journal | vauthors = Prabhu A, Obi KO, Rubenstein JH | title = The synergistic effects of alcohol and tobacco consumption on the risk of esophageal squamous cell carcinoma: a meta-analysis | journal = The American Journal of Gastroenterology | volume = 109 | issue = 6 | pages = 822–827 | date = June 2014 | pmid = 24751582 | doi = 10.1038/ajg.2014.71 | s2cid = 205103765 }}</ref> Some data suggest that about half of all cases are due to tobacco and about one-third to alcohol, while over three-quarters of the cases in men are due to the combination of smoking and heavy drinking.<ref name=WCR2014/> [[Alcohol and cancer|Risks associated with alcohol]] appear to be linked to its [[Acetaldehyde#Carcinogenicity|aldehyde metabolite]] and to mutations in certain [[Acetaldehyde dehydrogenase|related enzymes]].<ref name="Pennathur-2013"/> Such metabolic [[Polymorphism (biology)#Genetics|variants]] are relatively common in Asia.<ref name=WCR2014/>


Other relevant risk factors include regular consumption of very hot drinks (over 65&nbsp;°C or 149&nbsp;°F)<ref name="Loomis-2016">{{cite journal | vauthors = Loomis D, Guyton KZ, Grosse Y, Lauby-Secretan B, El Ghissassi F, Bouvard V, Benbrahim-Tallaa L, Guha N, Mattock H, Straif K | display-authors = 6 | title = Carcinogenicity of drinking coffee, mate, and very hot beverages | journal = The Lancet. Oncology | volume = 17 | issue = 7 | pages = 877–878 | date = July 2016 | pmid = 27318851 | doi = 10.1016/s1470-2045(16)30239-x | url = http://www.smeo.org.mx/images/sliders/slider-secundario/articulo-1.pdf | url-status = dead | access-date = 2016-10-03 | collaboration = International Agency for Research on Cancer Monograph Working | first11 = Group | archive-url = https://web.archive.org/web/20161005081158/http://www.smeo.org.mx/images/sliders/slider-secundario/articulo-1.pdf | archive-date = 2016-10-05 }}</ref><ref>{{cite web |title=Q&A on Monographs Volume 116: Coffee, maté, and very hot beverages |url=https://www.iarc.fr/en/media-centre/iarcnews/pdf/Monographs-Q&A_Vol116.pdf |website=www.iarc.fr |publisher=IARC / WHO |archive-url=https://web.archive.org/web/20160705200857/http://www.iarc.fr/en/media-centre/iarcnews/pdf/Monographs-Q%26A_Vol116.pdf |archive-date=5 July 2016 |url-status=live |access-date=3 October 2016 }}</ref> and ingestion of [[Corrosive substance|caustic]] substances.<ref name=WCR2014/> High levels of dietary exposure to [[nitrosamines]] (chemical compounds found both in tobacco smoke and certain foodstuffs) also appear to be a relevant risk factor.<ref name="Pennathur-2013"/>  Unfavorable dietary patterns seem to involve exposure to nitrosamines through [[Processed meat|processed]] and barbecued meats, pickled vegetables, etc., and a low intake of fresh foods.<ref name=WCR2014/> Other associated factors include [[nutritional deficiencies]], low [[socioeconomic status]], and poor [[oral hygiene]].<ref name="Pennathur-2013"/> Chewing [[areca nut|betel nut]] (areca) is an important risk factor in Asia.<ref name="Akhtar-2013">{{cite journal | vauthors = Akhtar S | title = Areca nut chewing and esophageal squamous-cell carcinoma risk in Asians: a meta-analysis of case-control studies | journal = Cancer Causes & Control | volume = 24 | issue = 2 | pages = 257–265 | date = February 2013 | pmid = 23224324 | doi = 10.1007/s10552-012-0113-9 | s2cid = 14356684 }}</ref>
Other relevant risk factors include regular consumption of very hot drinks (over 65&nbsp;°C or 149&nbsp;°F)<ref name="Loomis-2016">{{cite journal | vauthors = Loomis D, Guyton KZ, Grosse Y, Lauby-Secretan B, El Ghissassi F, Bouvard V, Benbrahim-Tallaa L, Guha N, Mattock H, Straif K | display-authors = 6 | title = Carcinogenicity of drinking coffee, mate, and very hot beverages | journal = The Lancet. Oncology | volume = 17 | issue = 7 | pages = 877–878 | date = July 2016 | pmid = 27318851 | doi = 10.1016/s1470-2045(16)30239-x | url = http://www.smeo.org.mx/images/sliders/slider-secundario/articulo-1.pdf | access-date = 2016-10-03 | collaboration = International Agency for Research on Cancer Monograph Working | first11 = Group | archive-url = https://web.archive.org/web/20161005081158/http://www.smeo.org.mx/images/sliders/slider-secundario/articulo-1.pdf | archive-date = 2016-10-05 }}</ref><ref>{{cite web |title=Q&A on Monographs Volume 116: Coffee, maté, and very hot beverages |url=https://www.iarc.fr/en/media-centre/iarcnews/pdf/Monographs-Q&A_Vol116.pdf |website=www.iarc.fr |publisher=IARC / WHO |archive-url=https://web.archive.org/web/20160705200857/http://www.iarc.fr/en/media-centre/iarcnews/pdf/Monographs-Q%26A_Vol116.pdf |archive-date=5 July 2016 |url-status=live |access-date=3 October 2016 }}</ref> and ingestion of [[Corrosive substance|caustic]] substances.<ref name=WCR2014/> High levels of dietary exposure to [[nitrosamines]] (chemical compounds found both in tobacco smoke and certain foodstuffs) also appear to be a relevant risk factor.<ref name="Pennathur-2013"/>  Unfavorable dietary patterns seem to involve exposure to nitrosamines through [[Processed meat|processed]] and barbecued meats, pickled vegetables, etc., and a low intake of fresh foods.<ref name=WCR2014/> Other associated factors include [[nutritional deficiencies]], low [[socioeconomic status]], and poor [[oral hygiene]].<ref name="Pennathur-2013"/> Chewing [[areca nut|betel nut]] (areca) is an important risk factor in Asia.<ref name="Akhtar-2013">{{cite journal | vauthors = Akhtar S | title = Areca nut chewing and esophageal squamous-cell carcinoma risk in Asians: a meta-analysis of case-control studies | journal = Cancer Causes & Control | volume = 24 | issue = 2 | pages = 257–265 | date = February 2013 | pmid = 23224324 | doi = 10.1007/s10552-012-0113-9 | s2cid = 14356684 }}</ref>


Physical trauma may increase the risk.<ref>{{cite book|veditors = Jobe BA, Thomas CR, Hunter JG |title=Esophageal cancer principles and practice|date=2009|publisher=Demos Medical|location=New York|isbn=978-1-935281-17-7|page=93|url=https://books.google.com/books?id=itAJFMYDmXkC&pg=PA93|url-status=live|archive-url=https://web.archive.org/web/20170910174951/https://books.google.com/books?id=itAJFMYDmXkC&pg=PA93|archive-date=2017-09-10}}</ref> This may include the drinking of very hot drinks.<ref name=Zhang2012/>
Physical trauma may increase the risk.<ref>{{cite book|veditors = Jobe BA, Thomas CR, Hunter JG |title=Esophageal cancer principles and practice|date=2009|publisher=Demos Medical|location=New York|isbn=978-1-935281-17-7|page=93|url=https://books.google.com/books?id=itAJFMYDmXkC&pg=PA93|url-status=live|archive-url=https://web.archive.org/web/20170910174951/https://books.google.com/books?id=itAJFMYDmXkC&pg=PA93|archive-date=2017-09-10}}</ref> This may include the drinking of very hot drinks.<ref name=Zhang2012/>
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==== Gastroesophageal reflux disease ====
==== Gastroesophageal reflux disease ====
The long-term erosive effects of acid reflux (an extremely common condition, also known as [[gastroesophageal reflux disease]] or GERD) have been strongly linked to this type of cancer.<ref name="deJonge-2014" /> Longstanding GERD can induce a [[intestinal metaplasia|change of cell type]] in the lower portion of the esophagus in response to erosion of its [[Stratified squamous epithelium|squamous lining]].<ref name="deJonge-2014" /> This phenomenon, known as [[Barrett's esophagus]], seems to appear about 20 years later in women than in men, possibly due to [[Estrogen|hormonal factors]].<ref name="deJonge-2014">{{cite journal | vauthors = de Jonge PJ, van Blankenstein M, Grady WM, Kuipers EJ | title = Barrett's oesophagus: epidemiology, cancer risk and implications for management | journal = Gut | volume = 63 | issue = 1 | pages = 191–202 | date = January 2014 | pmid = 24092861 | pmc = 6597262 | doi = 10.1136/gutjnl-2013-305490 | hdl = 1765/67455 }}</ref> At a mechanistic level, in the esophagus there is a small [[HOXA13]] expressing compartment that is more resistant to bile and acids as the normal squamous epithelium and that is prone to both intestinal differentiation as well as oncogenic transformation. Following GERD this HOXA13-expressing compartment outcompetes the normal squamous compartment, leading to the intestinal aspect of the esophagus and increased propensity to the development of esophageal cancer.<ref>{{cite journal | vauthors = Janmaat VT, Nesteruk K, Spaander MC, Verhaar AP, Yu B, Silva RA, Phillips WA, Magierowski M, van de Winkel A, Stadler HS, Sandoval-Guzmán T, van der Laan LJ, Kuipers EJ, Smits R, Bruno MJ, Fuhler GM, Clemons NJ, Peppelenbosch MP | display-authors = 6 | title = HOXA13 in etiology and oncogenic potential of Barrett's esophagus | journal = Nature Communications | volume = 12 | issue = 1 | pages = 3354 | date = June 2021 | pmid = 34099670 | pmc = 8184780 | doi = 10.1038/s41467-021-23641-8 | doi-access = free | bibcode = 2021NatCo..12.3354J }}</ref> Having symptomatic GERD or [[bile reflux]] makes Barrett's esophagus more likely, which in turn raises the risk of [[dysplasia|further changes]] that can ultimately lead to adenocarcinoma.<ref name="Pennathur-2013" /> Bile reflux containing unconjugated [[bile acids]], including [[deoxycholic acid]] and [[chenodeoxycholic acid]], appears to contribute to esophageal adenocarcinoma carcinogenesis by inducing [[oxidative stress]] and [[DNA damage (naturally occurring)|DNA damage]].<ref>{{cite journal | vauthors = Režen T, Rozman D, Kovács T, Kovács P, Sipos A, Bai P, Mikó E | title = The role of bile acids in carcinogenesis | journal = Cellular and Molecular Life Sciences | volume = 79 | issue = 5 | pages = 243 | date = April 2022 | pmid = 35429253 | pmc = 9013344 | doi = 10.1007/s00018-022-04278-2 }}</ref> The risk of developing adenocarcinoma in the presence of Barrett's esophagus is unclear, and may in the past have been overestimated.<ref name="WCR2014" />
The long-term erosive effects of acid reflux (an extremely common condition, also known as [[gastroesophageal reflux disease]] or GERD) have been strongly linked to this type of cancer.<ref name="deJonge-2014" /> Longstanding GERD can induce a [[intestinal metaplasia|change of cell type]] in the lower portion of the esophagus in response to erosion of its [[Stratified squamous epithelium|squamous lining]].<ref name="deJonge-2014" /> This phenomenon, known as [[Barrett's esophagus]], seems to appear about 20 years later in women than in men, possibly due to [[Estrogen|hormonal factors]].<ref name="deJonge-2014">{{cite journal | vauthors = de Jonge PJ, van Blankenstein M, Grady WM, Kuipers EJ | title = Barrett's oesophagus: epidemiology, cancer risk and implications for management | journal = Gut | volume = 63 | issue = 1 | pages = 191–202 | date = January 2014 | pmid = 24092861 | pmc = 6597262 | doi = 10.1136/gutjnl-2013-305490 | hdl = 1765/67455 }}</ref>  
 
At a mechanistic level, in the esophagus there is a small [[HOXA13]] expressing compartment that is more resistant to bile and acids as the normal squamous epithelium and that is prone to both intestinal differentiation as well as [[oncogenic transformation]]. Following GERD this HOXA13-expressing compartment outcompetes the normal squamous compartment, leading to the intestinal aspect of the esophagus and increased propensity to the development of esophageal cancer.<ref>{{cite journal | vauthors = Janmaat VT, Nesteruk K, Spaander MC, Verhaar AP, Yu B, Silva RA, Phillips WA, Magierowski M, van de Winkel A, Stadler HS, Sandoval-Guzmán T, van der Laan LJ, Kuipers EJ, Smits R, Bruno MJ, Fuhler GM, Clemons NJ, Peppelenbosch MP | display-authors = 6 | title = HOXA13 in etiology and oncogenic potential of Barrett's esophagus | journal = Nature Communications | volume = 12 | issue = 1 | article-number = 3354 | date = June 2021 | pmid = 34099670 | pmc = 8184780 | doi = 10.1038/s41467-021-23641-8 | doi-access = free | bibcode = 2021NatCo..12.3354J }}</ref>  
 
Having symptomatic GERD or [[bile reflux]] makes Barrett's esophagus more likely, which in turn raises the risk of [[dysplasia|further changes]] that can ultimately lead to adenocarcinoma.<ref name="Pennathur-2013" /> Bile reflux containing unconjugated [[bile acids]], including [[deoxycholic acid]] and [[chenodeoxycholic acid]], appears to contribute to esophageal adenocarcinoma carcinogenesis by inducing [[oxidative stress]] and [[DNA damage (naturally occurring)|DNA damage]].<ref>{{cite journal | vauthors = Režen T, Rozman D, Kovács T, Kovács P, Sipos A, Bai P, Mikó E | title = The role of bile acids in carcinogenesis | journal = Cellular and Molecular Life Sciences | volume = 79 | issue = 5 | article-number = 243 | date = April 2022 | pmid = 35429253 | pmc = 9013344 | doi = 10.1007/s00018-022-04278-2 }}</ref> The risk of developing adenocarcinoma in the presence of Barrett's esophagus is unclear, and may in the past have been overestimated.<ref name="WCR2014" />


==== Obesity ====
==== Obesity ====
Being obese or [[overweight]] is strongly associated with risk of developing esophageal adenocarcinoma, and may in fact be the strongest of any type of [[obesity and cancer|obesity-related cancer]], though the reasons for this remain unclear.<ref name="Turati">{{cite journal |vauthors=Turati F, Tramacere I, La Vecchia C, Negri E |date=March 2013 |title=A meta-analysis of body mass index and esophageal and gastric cardia adenocarcinoma |journal=Annals of Oncology |volume=24 |issue=3 |pages=609–617 |doi=10.1093/annonc/mds244 |pmid=22898040 |doi-access=free}}</ref><ref name="Lagergren-2011">{{cite journal | vauthors = Lagergren J | title = Influence of obesity on the risk of esophageal disorders | journal = Nature Reviews. Gastroenterology & Hepatology | volume = 8 | issue = 6 | pages = 340–347 | date = June 2011 | pmid = 21643038 | doi = 10.1038/nrgastro.2011.73 | s2cid = 31598439 }}</ref> [[Abdominal obesity]] seems to be of particular relevance, given the [[Independence (probability theory)|closeness]] of its association with this type of cancer, as well as with both GERD and Barrett's esophagus.<ref name="Lagergren-2011" /> This type of obesity is characteristic of men.<ref name="Lagergren-2011" />  Physiologically, it stimulates GERD and also has other chronic [[Inflammation|inflammatory]] effects.<ref name="deJonge-2014" />
Being obese or [[overweight]] is strongly associated with risk of developing esophageal adenocarcinoma, and may in fact be the strongest of any type of [[obesity and cancer|obesity-related cancer]], though the reasons for this remain unclear.<ref name="Turati">{{cite journal |vauthors=Turati F, Tramacere I, La Vecchia C, Negri E |date=March 2013 |title=A meta-analysis of body mass index and esophageal and gastric cardia adenocarcinoma |journal=Annals of Oncology |volume=24 |issue=3 |pages=609–617 |doi=10.1093/annonc/mds244 |pmid=22898040 |doi-access=free}}</ref><ref name="Lagergren-2011">{{cite journal | vauthors = Lagergren J | title = Influence of obesity on the risk of esophageal disorders | journal = Nature Reviews. Gastroenterology & Hepatology | volume = 8 | issue = 6 | pages = 340–347 | date = June 2011 | pmid = 21643038 | doi = 10.1038/nrgastro.2011.73 | s2cid = 31598439 }}</ref> [[Abdominal obesity]] seems to be of particular relevance, given the [[Independence (probability theory)|closeness]] of its association with this type of cancer, as well as with both GERD and Barrett's esophagus.<ref name="Lagergren-2011" /> This type of obesity is characteristic of men.<ref name="Lagergren-2011" />  Physiologically, it stimulates GERD and also has other chronic [[Inflammation|inflammatory]] effects.<ref name="deJonge-2014" />


==== Helicobacter pylori ====
==== ''Helicobacter pylori'' ====
''[[Helicobacter pylori]]'' infection (a common occurrence thought to have affected over half of the world's population) is not a risk factor for esophageal adenocarcinoma and actually appears to be protective. Despite being a cause of GERD and a risk factor for [[gastric cancer]], the infection seems to be associated with a reduced risk of esophageal adenocarcinoma of as much as 50%.<ref name="Lagergren-2013"/><ref name="Falk-2009">{{cite journal | vauthors = Falk GW | title = Risk factors for esophageal cancer development | journal = Surgical Oncology Clinics of North America | volume = 18 | issue = 3 | pages = 469–485 | date = July 2009 | pmid = 19500737 | doi = 10.1016/j.soc.2009.03.005 | url = http://download.bioon.com.cn/view/upload/month_0909/20090928_4507e142d23b50c17541YoA0Fk4TUkOB.attach.pdf | url-status = live | archive-url = https://web.archive.org/web/20140812210533/http://download.bioon.com.cn/view/upload/month_0909/20090928_4507e142d23b50c17541YoA0Fk4TUkOB.attach.pdf | archive-date = 2014-08-12 }}</ref> The biological explanation for a protective effect is somewhat unclear.<ref name="Falk-2009"/> One explanation is that some strains of ''H. pylori'' reduce [[stomach acid]], thereby reducing damage by GERD.<ref name="Harris-2013">{{cite book| vauthors = Harris RE | title=Epidemiology of Chronic Disease: Global Perspectives| chapter-url=https://books.google.com/books?id=KJLEIvX4wzoC&pg=PA159| year=2013| publisher=Jones & Bartlett Publishers| location=Burlington, MA| isbn=978-0-7637-8047-0| pages=157–161| chapter=Epidemiology of Esophageal Cancer| url-status=live| archive-url=https://web.archive.org/web/20150925162500/https://books.google.com/books?id=KJLEIvX4wzoC&pg=PA159| archive-date=2015-09-25}}</ref> Decreasing rates of ''H. pylori'' infection in Western populations over recent decades, which have been linked to less overcrowding in households, could be a factor in the concurrent increase in esophageal adenocarcinoma.<ref name="Lagergren-2013"/>
''[[Helicobacter pylori]]'' infection (a common occurrence thought to have affected over half of the world's population) is not a risk factor for esophageal adenocarcinoma and actually appears to be protective. Despite being a cause of GERD and a risk factor for [[gastric cancer]], the infection seems to be associated with a reduced risk of esophageal adenocarcinoma of as much as 50%.<ref name="Lagergren-2013"/><ref name="Falk-2009">{{cite journal | vauthors = Falk GW | title = Risk factors for esophageal cancer development | journal = Surgical Oncology Clinics of North America | volume = 18 | issue = 3 | pages = 469–485 | date = July 2009 | pmid = 19500737 | doi = 10.1016/j.soc.2009.03.005 | url = http://download.bioon.com.cn/view/upload/month_0909/20090928_4507e142d23b50c17541YoA0Fk4TUkOB.attach.pdf | url-status = live | archive-url = https://web.archive.org/web/20140812210533/http://download.bioon.com.cn/view/upload/month_0909/20090928_4507e142d23b50c17541YoA0Fk4TUkOB.attach.pdf | archive-date = 2014-08-12 }}</ref> The biological explanation for a protective effect is unclear.<ref name="Falk-2009"/> One explanation is that some strains of ''H. pylori'' reduce [[stomach acid]], thereby reducing damage by GERD.<ref name="Harris-2013">{{cite book| vauthors = Harris RE | title=Epidemiology of Chronic Disease: Global Perspectives| chapter-url=https://books.google.com/books?id=KJLEIvX4wzoC&pg=PA159| year=2013| publisher=Jones & Bartlett Publishers| location=Burlington, MA| isbn=978-0-7637-8047-0| pages=157–161| chapter=Epidemiology of Esophageal Cancer| url-status=live| archive-url=https://web.archive.org/web/20150925162500/https://books.google.com/books?id=KJLEIvX4wzoC&pg=PA159| archive-date=2015-09-25}}</ref> Decreasing rates of ''H. pylori'' infection in Western populations over recent decades, which have been linked to less overcrowding in households, could be a factor in the concurrent increase in esophageal adenocarcinoma.<ref name="Lagergren-2013"/>


==== Other risk factors for esophageal adenocarcinoma ====
==== Other risk factors for esophageal adenocarcinoma ====
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* History of [[radiation therapy]] for other conditions in the [[chest]] is a risk factor for esophageal adenocarcinoma.<ref name="Pennathur-2013"/>
* History of [[radiation therapy]] for other conditions in the [[chest]] is a risk factor for esophageal adenocarcinoma.<ref name="Pennathur-2013"/>
* [[Chemical burn|Corrosive injury]] to the esophagus by accidentally or intentionally swallowing [[Caustic (substance)|caustic]] substances is a risk factor for squamous cell carcinoma.<ref name=WCR2014/>
* [[Chemical burn|Corrosive injury]] to the esophagus by accidentally or intentionally swallowing [[Caustic (substance)|caustic]] substances is a risk factor for squamous cell carcinoma.<ref name=WCR2014/>
* [[Tylosis with esophageal cancer]] is a rare [[familial disease]] with autosomal dominant inheritance that has been linked to a mutation in the ''[[RHBDF2]]'' gene, present on chromosome 17: it involves thickening of the skin of the palms and soles and a high lifetime risk of squamous cell carcinoma.<ref name=WCR2014/><ref name="GARD-TOC">{{cite web| title=Tylosis with esophageal cancer| url=http://rarediseases.info.nih.gov/gard/3102/tylosis-with-esophageal-cancer/resources/1| website=rarediseases.info.nih.gov| publisher=Genetic and Rare Diseases Information Center (GARD) – NIH| access-date=16 August 2014| date=18 January 2013| url-status=live| archive-url=https://web.archive.org/web/20140819103022/http://rarediseases.info.nih.gov/gard/3102/tylosis-with-esophageal-cancer/resources/1| archive-date=19 August 2014}}</ref>
* [[Tylosis with esophageal cancer]] is a rare [[familial disease]] with autosomal dominant inheritance that has been linked to a mutation in the ''[[RHBDF2]]'' gene, present on chromosome 17: it involves thickening of the skin of the palms and soles and a high lifetime risk of squamous cell carcinoma.<ref name=WCR2014/><ref name="GARD-TOC">{{cite web| title=Tylosis with esophageal cancer| url=http://rarediseases.info.nih.gov/gard/3102/tylosis-with-esophageal-cancer/resources/1| website=rarediseases.info.nih.gov| publisher=Genetic and Rare Diseases Information Center (GARD) – NIH| access-date=16 August 2014| date=18 January 2013| archive-url=https://web.archive.org/web/20140819103022/http://rarediseases.info.nih.gov/gard/3102/tylosis-with-esophageal-cancer/resources/1| archive-date=19 August 2014}}</ref>
* [[Achalasia]] (i.e. lack of the involuntary reflex in the esophagus after swallowing) appears to be a risk factor for both main types of esophageal cancer, at least in men, due to stagnation of trapped food and drink.<ref name="Nyren-2008">{{cite book| vauthors = Nyrén O, Adami HO |veditors= Adami HO, Hunter DJ, Trichopoulos D|title=Textbook of Cancer Epidemiology|chapter-url=https://books.google.com/books?id=kuvMDqQuKEUC&pg=PA224|volume=1|year=2008|publisher=Oxford University Press|isbn=978-0-19-531117-4|page=224|chapter=Esophageal Cancer|url-status=live|archive-url=https://web.archive.org/web/20151025222116/https://books.google.com/books?id=kuvMDqQuKEUC&pg=PA224|archive-date=2015-10-25}}</ref>
* [[Achalasia]] (i.e. lack of the involuntary reflex in the esophagus after swallowing) appears to be a risk factor for both main types of esophageal cancer, at least in men, due to stagnation of trapped food and drink.<ref name="Nyren-2008">{{cite book| vauthors = Nyrén O, Adami HO |veditors= Adami HO, Hunter DJ, Trichopoulos D|title=Textbook of Cancer Epidemiology|chapter-url=https://books.google.com/books?id=kuvMDqQuKEUC&pg=PA224|volume=1|year=2008|publisher=Oxford University Press|isbn=978-0-19-531117-4|page=224|chapter=Esophageal Cancer|url-status=live|archive-url=https://web.archive.org/web/20151025222116/https://books.google.com/books?id=kuvMDqQuKEUC&pg=PA224|archive-date=2015-10-25}}</ref>
* [[Plummer–Vinson syndrome]] (a rare disease that involves [[esophageal web]]s) is also a risk factor.<ref name=WCR2014/>
* [[Plummer–Vinson syndrome]] (a rare disease that involves [[esophageal web]]s) is also a risk factor.<ref name=WCR2014/>
* There is some evidence suggesting a possible causal association between [[human papillomavirus]] (HPV) and esophageal squamous-cell carcinoma.<ref name="Liyanage-2014">{{cite journal | vauthors = Liyanage SS, Rahman B, Ridda I, Newall AT, Tabrizi SN, Garland SM, Segelov E, Seale H, Crowe PJ, Moa A, Macintyre CR | display-authors = 6 | title = The aetiological role of human papillomavirus in oesophageal squamous cell carcinoma: a meta-analysis | journal = PLOS ONE | volume = 8 | issue = 7 | pages = e69238 | year = 2013 | pmid = 23894436 | pmc = 3722293 | doi = 10.1371/journal.pone.0069238 | doi-access = free | bibcode = 2013PLoSO...869238L }}</ref> The relationship is unclear.<ref name="InterSCOPE-2012">{{cite journal | vauthors = Sitas F, Egger S, Urban MI, Taylor PR, Abnet CC, Boffetta P, O'Connell DL, Whiteman DC, Brennan P, Malekzadeh R, Pawlita M, Dawsey SM, Waterboer T | display-authors = 6 | title = InterSCOPE study: Associations between esophageal squamous cell carcinoma and human papillomavirus serological markers | journal = Journal of the National Cancer Institute | volume = 104 | issue = 2 | pages = 147–158 | date = January 2012 | pmid = 22228147 | pmc = 3260131 | doi = 10.1093/jnci/djr499 }}</ref> Possible relevance of HPV could be greater in places that have a particularly high incidence of this form of the disease,<ref name="Syrjanen-2013">{{cite journal | vauthors = Syrjänen K | title = Geographic origin is a significant determinant of human papillomavirus prevalence in oesophageal squamous cell carcinoma: systematic review and meta-analysis | journal = Scandinavian Journal of Infectious Diseases | volume = 45 | issue = 1 | pages = 1–18 | date = January 2013 | pmid = 22830571 | doi = 10.3109/00365548.2012.702281 | s2cid = 22862509 }}</ref> as in some Asian countries, including China.<ref name="Hardefeldt-2014">{{cite journal | vauthors = Hardefeldt HA, Cox MR, Eslick GD | title = Association between human papillomavirus (HPV) and oesophageal squamous cell carcinoma: a meta-analysis | journal = Epidemiology and Infection | volume = 142 | issue = 6 | pages = 1119–1137 | date = June 2014 | pmid = 24721187 | pmc = 9151180 | doi = 10.1017/S0950268814000016 | s2cid = 21457534 }}</ref>
* There is some evidence suggesting a possible causal association between [[human papillomavirus]] (HPV) and esophageal squamous-cell carcinoma.<ref name="Liyanage-2014">{{cite journal | vauthors = Liyanage SS, Rahman B, Ridda I, Newall AT, Tabrizi SN, Garland SM, Segelov E, Seale H, Crowe PJ, Moa A, Macintyre CR | display-authors = 6 | title = The aetiological role of human papillomavirus in oesophageal squamous cell carcinoma: a meta-analysis | journal = PLOS ONE | volume = 8 | issue = 7 | article-number = e69238 | year = 2013 | pmid = 23894436 | pmc = 3722293 | doi = 10.1371/journal.pone.0069238 | doi-access = free | bibcode = 2013PLoSO...869238L }}</ref> The relationship is unclear.<ref name="InterSCOPE-2012">{{cite journal | vauthors = Sitas F, Egger S, Urban MI, Taylor PR, Abnet CC, Boffetta P, O'Connell DL, Whiteman DC, Brennan P, Malekzadeh R, Pawlita M, Dawsey SM, Waterboer T | display-authors = 6 | title = InterSCOPE study: Associations between esophageal squamous cell carcinoma and human papillomavirus serological markers | journal = Journal of the National Cancer Institute | volume = 104 | issue = 2 | pages = 147–158 | date = January 2012 | pmid = 22228147 | pmc = 3260131 | doi = 10.1093/jnci/djr499 }}</ref> Possible relevance of HPV could be greater in places that have a particularly high incidence of this form of the disease,<ref name="Syrjanen-2013">{{cite journal | vauthors = Syrjänen K | title = Geographic origin is a significant determinant of human papillomavirus prevalence in oesophageal squamous cell carcinoma: systematic review and meta-analysis | journal = Scandinavian Journal of Infectious Diseases | volume = 45 | issue = 1 | pages = 1–18 | date = January 2013 | pmid = 22830571 | doi = 10.3109/00365548.2012.702281 | s2cid = 22862509 }}</ref> as in some Asian countries, including China.<ref name="Hardefeldt-2014">{{cite journal | vauthors = Hardefeldt HA, Cox MR, Eslick GD | title = Association between human papillomavirus (HPV) and oesophageal squamous cell carcinoma: a meta-analysis | journal = Epidemiology and Infection | volume = 142 | issue = 6 | pages = 1119–1137 | date = June 2014 | pmid = 24721187 | pmc = 9151180 | doi = 10.1017/S0950268814000016 | s2cid = 21457534 }}</ref>
* There is an association between [[celiac disease]] and esophageal cancer. People with untreated celiac disease have a higher risk, but this risk decreases with time after diagnosis, probably due to the adoption of a [[gluten-free diet]], which seems to have a protective role against development of malignancy in people with celiac disease. However, the delay in diagnosis and initiation of a gluten-free diet seems to increase the risk of malignancy. Moreover, in some cases the detection of celiac disease is due to the development of cancer, whose early symptoms are similar to some that may appear in celiac disease.<ref name="pmid26402826">{{cite journal | vauthors = Han Y, Chen W, Li P, Ye J | title = Association Between Coeliac Disease and Risk of Any Malignancy and Gastrointestinal Malignancy: A Meta-Analysis | journal = Medicine | volume = 94 | issue = 38 | pages = e1612 | date = September 2015 | pmid = 26402826 | pmc = 4635766 | doi = 10.1097/MD.0000000000001612 }}</ref>
* There is an association between [[celiac disease]] and esophageal cancer. People with untreated celiac disease have a higher risk, but this risk decreases with time after diagnosis, probably due to the adoption of a [[gluten-free diet]], which seems to have a protective role against development of malignancy in people with celiac disease. However, the delay in diagnosis and initiation of a gluten-free diet seems to increase the risk of malignancy. Moreover, in some cases the detection of celiac disease is due to the development of cancer, whose early symptoms are similar to some that may appear in celiac disease.<ref name="pmid26402826">{{cite journal | vauthors = Han Y, Chen W, Li P, Ye J | title = Association Between Coeliac Disease and Risk of Any Malignancy and Gastrointestinal Malignancy: A Meta-Analysis | journal = Medicine | volume = 94 | issue = 38 | article-number = e1612 | date = September 2015 | pmid = 26402826 | pmc = 4635766 | doi = 10.1097/MD.0000000000001612 }}</ref>


==Diagnosis==
==Diagnosis==
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Esophageal cancers are typically [[carcinoma]]s that arise from the [[epithelium]], or surface lining, of the esophagus. Most esophageal cancers fall into one of two classes: esophageal squamous-cell carcinomas (ESCC), which are similar to [[head and neck cancer]] in their appearance and association with tobacco and alcohol consumption—and esophageal adenocarcinomas (EAC), which are often associated with a history of GERD and Barrett's esophagus. A rule of thumb is that a cancer in the upper two-thirds is likely to be ESCC and one in the lower one-third EAC.
Esophageal cancers are typically [[carcinoma]]s that arise from the [[epithelium]], or surface lining, of the esophagus. Most esophageal cancers fall into one of two classes: esophageal squamous-cell carcinomas (ESCC), which are similar to [[head and neck cancer]] in their appearance and association with tobacco and alcohol consumption—and esophageal adenocarcinomas (EAC), which are often associated with a history of GERD and Barrett's esophagus. A rule of thumb is that a cancer in the upper two-thirds is likely to be ESCC and one in the lower one-third EAC.


Rare histologic types of esophageal cancer include different variants of squamous-cell carcinoma, and non-epithelial tumors, such as [[leiomyosarcoma]], [[melanoma|malignant melanoma]], [[rhabdomyosarcoma]] and [[lymphoma]], among others.<ref name="ShieldsLoCicero2009">{{cite book|vauthors=Shields TW, LoCicero JW, Reed CE, Feins RH|title=General Thoracic Surgery|url=https://books.google.com/books?id=bVEEHmpU-1wC&pg=PA2047|year=2009|publisher=Lippincott Williams & Wilkins|isbn=978-0-7817-7982-1|pages=2047–|url-status=live|archive-url=https://web.archive.org/web/20151025031909/https://books.google.com/books?id=bVEEHmpU-1wC&pg=PA2047|archive-date=2015-10-25}}</ref><ref name="HalperinPerez2008">{{cite book|vauthors=Halperin EC, Perez CA, Brady LW|title=Perez and Brady's Principles and Practice of Radiation Oncology|url=https://books.google.com/books?id=NyeE6-aKnSYC&pg=PA1137|year=2008|publisher=Lippincott Williams & Wilkins|isbn=978-0-7817-6369-1|pages=1137–|url-status=live|archive-url=https://web.archive.org/web/20151019014820/https://books.google.com/books?id=NyeE6-aKnSYC&pg=PA1137|archive-date=2015-10-19}}</ref>
Rare histologic types of esophageal cancer include different variants of squamous-cell carcinoma, and non-epithelial tumors, such as [[leiomyosarcoma]], [[melanoma]], [[rhabdomyosarcoma]] and [[lymphoma]], among others.<ref name="ShieldsLoCicero2009">{{cite book|vauthors=Shields TW, LoCicero JW, Reed CE, Feins RH|title=General Thoracic Surgery|url=https://books.google.com/books?id=bVEEHmpU-1wC&pg=PA2047|year=2009|publisher=Lippincott Williams & Wilkins|isbn=978-0-7817-7982-1|pages=2047–|url-status=live|archive-url=https://web.archive.org/web/20151025031909/https://books.google.com/books?id=bVEEHmpU-1wC&pg=PA2047|archive-date=2015-10-25}}</ref><ref name="HalperinPerez2008">{{cite book|vauthors=Halperin EC, Perez CA, Brady LW|title=Perez and Brady's Principles and Practice of Radiation Oncology|url=https://books.google.com/books?id=NyeE6-aKnSYC&pg=PA1137|year=2008|publisher=Lippincott Williams & Wilkins|isbn=978-0-7817-6369-1|pages=1137–|url-status=live|archive-url=https://web.archive.org/web/20151019014820/https://books.google.com/books?id=NyeE6-aKnSYC&pg=PA1137|archive-date=2015-10-19}}</ref>


===Staging===
===Staging===
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People with [[Barrett's esophagus]] (an abnormality of the cells lining the lower esophagus) are at much higher risk,<ref name=Zhang2013>{{cite journal | vauthors = Zhang Y | title = Epidemiology of esophageal cancer | journal = World Journal of Gastroenterology | volume = 19 | issue = 34 | pages = 5598–5606 | date = September 2013 | pmid = 24039351 | pmc = 3769895 | doi = 10.3748/wjg.v19.i34.5598 | doi-access = free }}</ref> and may receive regular endoscopic screening for the early signs of cancer.<ref name=Dunbar2014>{{cite journal | vauthors = Dunbar KB, Spechler SJ | title = Controversies in Barrett esophagus | journal = Mayo Clinic Proceedings | volume = 89 | issue = 7 | pages = 973–984 | date = July 2014 | pmid = 24867396 | doi = 10.1016/j.mayocp.2014.01.022 | doi-access = free }}</ref> Because the benefit of screening for adenocarcinoma in people without symptoms is unclear,<ref name=WCR2014/> it is not recommended in the United States.<ref name=Ferri2012/>  
People with [[Barrett's esophagus]] (an abnormality of the cells lining the lower esophagus) are at much higher risk,<ref name=Zhang2013>{{cite journal | vauthors = Zhang Y | title = Epidemiology of esophageal cancer | journal = World Journal of Gastroenterology | volume = 19 | issue = 34 | pages = 5598–5606 | date = September 2013 | pmid = 24039351 | pmc = 3769895 | doi = 10.3748/wjg.v19.i34.5598 | doi-access = free }}</ref> and may receive regular endoscopic screening for the early signs of cancer.<ref name=Dunbar2014>{{cite journal | vauthors = Dunbar KB, Spechler SJ | title = Controversies in Barrett esophagus | journal = Mayo Clinic Proceedings | volume = 89 | issue = 7 | pages = 973–984 | date = July 2014 | pmid = 24867396 | doi = 10.1016/j.mayocp.2014.01.022 | doi-access = free }}</ref> Because the benefit of screening for adenocarcinoma in people without symptoms is unclear,<ref name=WCR2014/> it is not recommended in the United States.<ref name=Ferri2012/>  


The Nath Score is a history-based risk assessment model developed using machine learning and retrospective data. It evaluates clinical history and symptom patterns to estimate the likelihood of esophageal cancer and has been proposed as a screening tool, particularly in settings where access to endoscopic screening is limited. While retrospective studies support its ability to identify high-risk individuals, it has not yet been adopted into standard screening guidelines. <ref>{{Cite journal |last=Nath |first=Chaitali |date=2024-12-12 |title=Score to Save: Revolutionizing Esophageal Cancer Screening with Multifaceted Indicators |url=https://healthinformaticsjournal.com/index.php/IJMI/article/view/1254 |journal=[[Frontiers in Health Informatics]] |volume=13 |issue=6 |pages=22-44 |via=SCOPUS}}</ref>
The Nath Score is a history-based risk assessment model developed using machine learning and retrospective data. It evaluates clinical history and symptom patterns to estimate the likelihood of esophageal cancer and has been proposed as a screening tool, particularly in settings where access to endoscopic screening is limited. While retrospective studies support its ability to identify high-risk individuals, it has not yet been adopted into standard screening guidelines.<ref>{{Cite journal |last=Nath |first=Chaitali |date=2024-12-12 |title=Score to Save: Revolutionizing Esophageal Cancer Screening with Multifaceted Indicators |url=https://healthinformaticsjournal.com/index.php/IJMI/article/view/1254 |journal=[[Frontiers in Health Informatics]] |volume=13 |issue=6 |pages=22–44 |via=SCOPUS}}</ref>


==Management==
==Management==
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===Surgery===
===Surgery===
{{further|Esophagectomy}}
{{further|Esophagectomy}}
If the cancer has been diagnosed while still in an early stage, surgical treatment with a curative intention may be possible. Some small tumors that only involve the [[mucosa]] or lining of the esophagus may be removed by [[endoscopic mucosal resection]] (EMR).<ref name="Fernandez-Esparrach 2014">{{cite journal | vauthors = Fernández-Esparrach G, Calderón A, de la Peña J, Díaz Tasende JB, Esteban JM, Gimeno-García AZ, Herreros de Tejada A, Martínez-Ares D, Nicolás-Pérez D, Nogales O, Ono A, Orive-Calzada A, Parra-Blanco A, Rodríguez Muñoz S, Sánchez Hernández E, Sánchez-Yagüe A, Vázquez-Sequeiros E, Vila J, López Rosés L | display-authors = 6 | title = Endoscopic submucosal dissection | journal = Endoscopy | volume = 46 | issue = 4 | pages = 361–370 | date = April 2014 | pmid = 24671864 | doi = 10.1055/s-0034-1364921 | doi-access = free | hdl = 20.500.11940/348 | hdl-access = free }}</ref><ref name="Sun 2014">{{cite journal | vauthors = Sun F, Yuan P, Chen T, Hu J | title = Efficacy and complication of endoscopic submucosal dissection for superficial esophageal carcinoma: a systematic review and meta-analysis | journal = Journal of Cardiothoracic Surgery | volume = 9 | pages = 78 | date = May 2014 | pmid = 24885614 | pmc = 4052291 | doi = 10.1186/1749-8090-9-78 | doi-access = free }}</ref> Otherwise, curative surgery of early-stage lesions may entail removal of all or part of the esophagus ([[esophagectomy]]), although this is a difficult operation with a relatively high risk of mortality or post-operative difficulties. The benefits of surgery are less clear in early-stage ESCC than EAC. There are a number of surgical options, and the best choices for particular situations remain the subject of research and discussion.<ref name=Tobias10/><ref name=DeVita11>{{cite book | vauthors = Mendenhall WM, Werning JW, Pfister DG |chapter= Ch <!-- 79??? --> Chapter 72: Treatment of head and neck cancer | veditors = DeVita Jr VT, Lawrence TS, Rosenberg SA |title=DeVita, Hellman, and Rosenberg's Cancer: Cancer: Principles & Practice of Oncology |edition=9th |date=2011 | location = Philadelphia, Pa |publisher=Lippincott Williams & Wilkins|isbn=978-1-4511-0545-2 | pages = 729–780 }} Online edition, with updates to 2014</ref><ref>{{cite journal | vauthors = Berry MF | title = Esophageal cancer: staging system and guidelines for staging and treatment | journal = Journal of Thoracic Disease | volume = 6 | issue = Suppl 3 | pages = S289–S297 | date = May 2014 | pmid = 24876933 | pmc = 4037413 | doi = 10.3978/j.issn.2072-1439.2014.03.11 }}</ref>
If the cancer has been diagnosed while still in an early stage, surgical treatment with a curative intention may be possible. Some small tumors that only involve the [[mucosa]] or lining of the esophagus may be removed by [[endoscopic mucosal resection]] (EMR).<ref name="Fernandez-Esparrach 2014">{{cite journal | vauthors = Fernández-Esparrach G, Calderón A, de la Peña J, Díaz Tasende JB, Esteban JM, Gimeno-García AZ, Herreros de Tejada A, Martínez-Ares D, Nicolás-Pérez D, Nogales O, Ono A, Orive-Calzada A, Parra-Blanco A, Rodríguez Muñoz S, Sánchez Hernández E, Sánchez-Yagüe A, Vázquez-Sequeiros E, Vila J, López Rosés L | display-authors = 6 | title = Endoscopic submucosal dissection | journal = Endoscopy | volume = 46 | issue = 4 | pages = 361–370 | date = April 2014 | pmid = 24671864 | doi = 10.1055/s-0034-1364921 | doi-access = free | hdl = 20.500.11940/348 | hdl-access = free }}</ref><ref name="Sun 2014">{{cite journal | vauthors = Sun F, Yuan P, Chen T, Hu J | title = Efficacy and complication of endoscopic submucosal dissection for superficial esophageal carcinoma: a systematic review and meta-analysis | journal = Journal of Cardiothoracic Surgery | volume = 9 | article-number = 78 | date = May 2014 | pmid = 24885614 | pmc = 4052291 | doi = 10.1186/1749-8090-9-78 | doi-access = free }}</ref> Otherwise, curative surgery of early-stage lesions may entail removal of all or part of the esophagus ([[esophagectomy]]), although this is a difficult operation with a relatively high risk of mortality or post-operative difficulties. The benefits of surgery are less clear in early-stage ESCC than EAC. There are a number of surgical options, and the best choices for particular situations remain the subject of research and discussion.<ref name=Tobias10/><ref name=DeVita11>{{cite book | vauthors = Mendenhall WM, Werning JW, Pfister DG |chapter= Ch <!-- 79??? --> Chapter 72: Treatment of head and neck cancer | veditors = DeVita Jr VT, Lawrence TS, Rosenberg SA |title=DeVita, Hellman, and Rosenberg's Cancer: Cancer: Principles & Practice of Oncology |edition=9th |date=2011 | location = Philadelphia, Pa |publisher=Lippincott Williams & Wilkins|isbn=978-1-4511-0545-2 | pages = 729–780 }} Online edition, with updates to 2014</ref><ref>{{cite journal | vauthors = Berry MF | title = Esophageal cancer: staging system and guidelines for staging and treatment | journal = Journal of Thoracic Disease | volume = 6 | issue = Suppl 3 | pages = S289–S297 | date = May 2014 | pmid = 24876933 | pmc = 4037413 | doi = 10.3978/j.issn.2072-1439.2014.03.11 }}</ref>


The likely [[quality of life (healthcare)|quality of life]] after treatment is a relevant factor when considering surgery.<ref name="Parameswaran-2008">{{cite journal | vauthors = Parameswaran R, McNair A, Avery KN, Berrisford RG, Wajed SA, Sprangers MA, Blazeby JM | title = The role of health-related quality of life outcomes in clinical decision making in surgery for esophageal cancer: a systematic review | journal = Annals of Surgical Oncology | volume = 15 | issue = 9 | pages = 2372–2379 | date = September 2008 | pmid = 18626719 | doi = 10.1245/s10434-008-0042-8 | s2cid = 19933001 | author-link7 = Jane Blazeby }}</ref>  Surgical outcomes are likely better in large centers where the procedures are frequently performed.<ref name=DeVita11/>  If the cancer has spread to other parts of the body, esophagectomy is nowadays not normally performed.<ref name=DeVita11/><ref>{{harvnb|Berry|2014|p=S293}}</ref>
The likely [[quality of life (healthcare)|quality of life]] after treatment is a relevant factor when considering surgery.<ref name="Parameswaran-2008">{{cite journal | vauthors = Parameswaran R, McNair A, Avery KN, Berrisford RG, Wajed SA, Sprangers MA, Blazeby JM | title = The role of health-related quality of life outcomes in clinical decision making in surgery for esophageal cancer: a systematic review | journal = Annals of Surgical Oncology | volume = 15 | issue = 9 | pages = 2372–2379 | date = September 2008 | pmid = 18626719 | doi = 10.1245/s10434-008-0042-8 | s2cid = 19933001 | author-link7 = Jane Blazeby }}</ref>  Surgical outcomes are likely better in large centers where the procedures are frequently performed.<ref name=DeVita11/>  If the cancer has spread to other parts of the body, esophagectomy is nowadays not normally performed.<ref name=DeVita11/><ref>{{harvnb|Berry|2014|p=S293}}</ref>
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===Chemotherapy and radiotherapy===
===Chemotherapy and radiotherapy===
[[Chemotherapy]] depends on the tumor type, but tends to be [[cisplatin]]-based (or [[carboplatin]] or [[oxaliplatin]]) every three weeks with [[fluorouracil]]  (5-FU) or [[capecitabine]] either continuously or every three weeks. In more studies, addition of [[epirubicin]] was better than other three drug regimens in advanced nonresectable cancer.<ref>{{cite journal | vauthors = Ross P, Nicolson M, Cunningham D, Valle J, Seymour M, Harper P, Price T, Anderson H, Iveson T, Hickish T, Lofts F, Norman A | display-authors = 6 | title = Prospective randomized trial comparing mitomycin, cisplatin, and protracted venous-infusion fluorouracil (PVI 5-FU) With epirubicin, cisplatin, and PVI 5-FU in advanced esophagogastric cancer | journal = Journal of Clinical Oncology | volume = 20 | issue = 8 | pages = 1996–2004 | date = April 2002 | pmid = 11956258 | doi = 10.1200/JCO.2002.08.105 }}</ref> However, a meta-analysis in 2017 failed to demonstrate that [[anthracyclines]] such as [[epirubicin]] improved survival.<ref>{{cite journal | last1=Haj Mohammad | first1=N. | last2=ter Veer | first2=E. | last3=Ngai | first3=L. | last4=Mali | first4=R. | last5=van Oijen | first5=M. G. H. | last6=van Laarhoven | first6=H. W. M. | title=Optimal first-line chemotherapeutic treatment in patients with locally advanced or metastatic esophagogastric carcinoma: triplet versus doublet chemotherapy: a systematic literature review and meta-analysis | journal=Cancer and Metastasis Reviews | volume=34 | issue=3 | date=2015 | issn=0167-7659 | pmid=26267802 | pmc=4573655 | doi=10.1007/s10555-015-9576-y | doi-access=free | pages=429–441 | url=https://link.springer.com/content/pdf/10.1007/s10555-015-9576-y.pdf | access-date=2025-01-05}}</ref>  Therefore in metastatic cancer, a two drug combination is now standard. Most recently with the addition of [[nivolumab]]<ref>{{cite journal | last1=Doki | first1=Yuichiro | last2=Ajani | first2=Jaffer A. | last3=Kato | first3=Ken | last4=Xu | first4=Jianming | last5=Wyrwicz | first5=Lucjan | last6=Motoyama | first6=Satoru | last7=Ogata | first7=Takashi | last8=Kawakami | first8=Hisato | last9=Hsu | first9=Chih-Hung | last10=Adenis | first10=Antoine | last11=El Hajbi | first11=Farid | last12=Di Bartolomeo | first12=Maria | last13=Braghiroli | first13=Maria I. | last14=Holtved | first14=Eva | last15=Ostoich | first15=Sandra A. | last16=Kim | first16=Hye R. | last17=Ueno | first17=Masaki | last18=Mansoor | first18=Wasat | last19=Yang | first19=Wen-Chi | last20=Liu | first20=Tianshu | last21=Bridgewater | first21=John | last22=Makino | first22=Tomoki | last23=Xynos | first23=Ioannis | last24=Liu | first24=Xuan | last25=Lei | first25=Ming | last26=Kondo | first26=Kaoru | last27=Patel | first27=Apurva | last28=Gricar | first28=Joseph | last29=Chau | first29=Ian | last30=Kitagawa | first30=Yuko | title=Nivolumab Combination Therapy in Advanced Esophageal Squamous-Cell Carcinoma | journal=New England Journal of Medicine | volume=386 | issue=5 | date=2022-02-03 | issn=0028-4793 | doi=10.1056/NEJMoa2111380 | doi-access=free | pages=449–462 }}</ref> or [[pembrolizumab]]<ref>{{cite journal | last1=Rha | first1=Sun Young | last2=Oh | first2=Do-Youn | last3=Yañez | first3=Patricio | last4=Bai | first4=Yuxian | last5=Ryu | first5=Min-Hee | last6=Lee | first6=Jeeyun | last7=Rivera | first7=Fernando | last8=Alves | first8=Gustavo Vasconcelos | last9=Garrido | first9=Marcelo | last10=Shiu | first10=Kai-Keen | last11=Fernández | first11=Manuel González | last12=Li | first12=Jin | last13=Lowery | first13=Maeve A | last14=Çil | first14=Timuçin | last15=Cruz | first15=Felipe Melo | last16=Qin | first16=Shukui | last17=Luo | first17=Suxia | last18=Pan | first18=Hongming | last19=Wainberg | first19=Zev A | last20=Yin | first20=Lina | last21=Bordia | first21=Sonal | last22=Bhagia | first22=Pooja | last23=Wyrwicz | first23=Lucjan S | last24=Mendez | first24=Guillermo | last25=O'Connor | first25=Juan Manuel | last26=Yanzi Castilla | first26=Alvaro | last27=Cundom | first27=Juan | last28=Kaen | first28=Diego | last29=Wong | first29=Rachel | last30=Ng | first30=Weng | last31=Aghmesheh | first31=Morteza | last32=Peressoni | first32=Mauricio | last33=Andrade | first33=Carlos | last34=Franke | first34=Fabio | last35=Alves | first35=Gustavo | last36=Cruz | first36=Felipe Jose | last37=Vianna | first37=Karina | last38=Monteiro | first38=Maria Marcela | last39=Raphael | first39=Michael | last40=Berry | first40=Scott | last41=Jang | first41=Raymond | last42=Tan | first42=Ann | last43=Asselah | first43=Jamil | last44=Yanez Weber | first44=Patricio | last45=Mahave | first45=Mauricio | last46=Sanchez | first46=Cesar | last47=Salman | first47=Pamela | last48=Bai | first48=Yuxian | last49=Li | first49=Jin | last50=Zhang | first50=Xiaochun | last51=Liu | first51=Tianshu | last52=Lin | first52=Xiaoyan | last53=Qin | first53=Shukui | last54=Yang | first54=Jianwei | last55=Luo | first55=Suxia | last56=Li | first56=Wei | last57=Ying | first57=Jieer | last58=Chen | first58=Xi | last59=Zeng | first59=Shan | last60=Qu | first60=Yanli | last61=Yang | first61=Lin | last62=Zhao | first62=Lin | last63=Chen | first63=Ping | last64=Pan | first64=Hongming | last65=Li | first65=Enxiao | last66=Ye | first66=Feng | last67=Lu | first67=Jianwei | last68=Liang | first68=Xinjun | last69=Zhao | first69=Qun | last70=Yin | first70=Xianli | last71=Li | first71=Junhe | last72=Ling | first72=Yang | last73=Lv | first73=Guoqing | last74=Li | first74=Shouguo | last75=Guerrero | first75=Alvaro | last76=Rubiano | first76=Juan | last77=Gonzalez Fernandez | first77=Manuel | last78=Manneh Kopp | first78=Ray | last79=Guzman Ramirez | first79=Adrian | last80=Corrales | first80=Luis | last81=Gonzalez Herrera | first81=Ileana | last82=Melichar | first82=Bohuslav | last83=Buchler | first83=Tomas | last84=Svoboda | first84=Tomas | last85=Obermannova | first85=Radka | last86=Vrana | first86=David | last87=Cvek | first87=Jakub | last88=Pfeiffer | first88=Per | last89=Baeksgaard | first89=Lene | last90=Yilmaz | first90=Mette | last91=Boige | first91=Valerie | last92=Lopez-Trabada | first92=Daniel | last93=Borg | first93=Christophe | last94=Pannier | first94=Diane | last95=Hiret | first95=Sandrine | last96=Di Fiore | first96=Frederic | last97=Metges | first97=Jean-Philippe | last98=Arnold | first98=Dirk | last99=Martens | first99=Uwe | last100=Lordick | first100=Florian | last101=Stein | first101=Alexander | last102=Castro | first102=Hugo | last103=Lopez | first103=Karla | last104=Ramirez | first104=Julio | last105=Aguilar | first105=Mynor | last106=Chivalan | first106=Marco | last107=Chan | first107=Wendy | last108=Cheng | first108=Ashley | last109=Yeo | first109=Winnie | last110=Arkosy | first110=Peter | last111=Csoszi | first111=Tibor | last112=Hitre | first112=Erika | last113=Horvath | first113=Zsolt | last114=Lowery | first114=Maeve | last115=McDermott | first115=Ray | last116=Morris | first116=Patrick | last117=Hubert | first117=Ayala | last118=Brenner | first118=Baruch | last119=Ben-Aharon | first119=Irit | last120=Shacham-Shmueli | first120=Einat | last121=Man | first121=Sofia | last122=Pelles Avraham | first122=Sharon | last123=Brenner | first123=Ronen | last124=Mishaeli | first124=Moshe | last125=Di Bartolomeo | first125=Maria | last126=Fazio | first126=Nicola | last127=Lonardi | first127=Sara | last128=Garufi | first128=Carlo | last129=Satoh | first129=Taroh | last130=Hara | first130=Hiroki | last131=Iwagami | first131=Shiro | last132=Yasui | first132=Hisateru | last133=Tsuda | first133=Masahiro | last134=Shimoyama | first134=Tatsu | last135=Shoji | first135=Hirokazu | last136=Sugimoto | first136=Naotoshi | last137=Shibata | first137=Nobuhiro | last138=Yamaguchi | first138=Kensei | last139=Amagai | first139=Kenji | last140=Choda | first140=Yasuhiro | last141=Esaki | first141=Taito | last142=Yabusaki | first142=Hiroshi | last143=Oshima | first143=Takashi | last144=Tsuji | first144=Akihito | last145=Kawakami | first145=Hisato | last146=Kawazoe | first146=Akihito | last147=Ishido | first147=Kenji | last148=Kadowaki | first148=Shigenori | last149=Martinez Rodriguez | first149=Jorge | last150=Herrera Martinez | first150=Marytere | last151=Huitzil Melendez | first151=Fidel | last152=Ramirez Godinez | first152=Francisco | last153=Balancan | first153=Paola | last154=Damianovich | first154=Dragan | last155=Castro Oliden | first155=Victor | last156=Grados | first156=Julio | last157=Torres | first157=Cesar | last158=Wyrwicz | first158=Lucjan | last159=Wysocki | first159=Piotr | last160=Hajac | first160=Lukasz | last161=Zolnierek | first161=Jakub | last162=Karaszewska | first162=Boguslawa | last163=Rha | first163=Sun Young | last164=Lee | first164=Jeeyun | last165=Ryu | first165=Min-Hee | last166=Oh | first166=Do-Youn | last167=Orlova | first167=Rashida | last168=Tjulandin | first168=Sergey | last169=Fadeeva | first169=Natalia | last170=Makarycheva | first170=Yulia | last171=Nosov | first171=Dmitry | last172=Smagina | first172=Maria | last173=Chan | first173=Sze | last174=Jacobs | first174=Conrad | last175=Kraus | first175=Peter | last176=Landers | first176=Gregory | last177=Robertson | first177=Barbara | last178=Ruff | first178=Paul | last179=Schoeman | first179=Elizabeth | last180=Maurel | first180=Jean-Marc | last181=Diez Garcia | first181=Marc | last182=Jimenez Fonseca | first182=Paula | last183=Gallego Plazas | first183=Javier | last184=Rivera Herrero | first184=Fernando | last185=Miranda Poma | first185=Jesus | last186=Layos Romero | first186=Laura | last187=Fritsch | first187=Ralph | last188=Bastian | first188=Sara | last189=Winterhalder | first189=Ralph | last190=Dosso | first190=Sara De | last191=Kossler | first191=Thibaud | last192=Yeh | first192=Kun-Huei | last193=Yen | first193=Chia-Jui | last194=Chen | first194=Yen-Yang | last195=Lin | first195=Johnson | last196=Bilici | first196=Mehmet | last197=Ozguroglu | first197=Mustafa | last198=Cil | first198=Timucin | last199=Oksuzoglu | first199=Berna | last200=Harputluoglu | first200=Hakan | last201=Karaoglu | first201=Aziz | last202=Hacibekiroglu | first202=Ilhan | last203=Erdogan | first203=Bulent | last204=Yalcin | first204=Suayib | last205=Adamchuk | first205=Hryhoriy | last206=Bondarenko | first206=Igor | last207=Kolesnik | first207=Oleksii | last208=Ostapenko | first208=Yuriy | last209=Kryzhanivska | first209=Anna | last210=Leshchenko | first210=Lurii | last211=Ilin | first211=Ievgen | last212=Shparyk | first212=Yaroslav | last213=Trukhin | first213=Dmytro | last214=Voitko | first214=Nataliia | last215=Roy | first215=Rajarshi | last216=Young | first216=Anna-Mary | last217=Medley | first217=Louise | last218=Shiu | first218=Kai-Keen | last219=Celano | first219=Paul | last220=Overton | first220=Lindsay | last221=Raj | first221=Moses | last222=Dunne | first222=Richard | last223=Wainberg | first223=Zev | last224=Dayyani | first224=Farshid | last225=Larson | first225=Timothy | last226=Kochenderfer | first226=Mark | title=Pembrolizumab plus chemotherapy versus placebo plus chemotherapy for HER2-negative advanced gastric cancer (KEYNOTE-859): a multicentre, randomised, double-blind, phase 3 trial | journal=The Lancet Oncology | volume=24 | issue=11 | date=2023 | doi=10.1016/S1470-2045(23)00515-6 | pages=1181–1195}}</ref> [[immunotherapy]] where molecular markers suggest these may be helpful.
[[Chemotherapy]] depends on the tumor type, but tends to be [[cisplatin]]-based (or [[carboplatin]] or [[oxaliplatin]]) every three weeks with [[fluorouracil]]  (5-FU) or [[capecitabine]] either continuously or every three weeks. In more studies, addition of [[epirubicin]] was better than other three drug regimens in advanced nonresectable cancer.<ref>{{cite journal | vauthors = Ross P, Nicolson M, Cunningham D, Valle J, Seymour M, Harper P, Price T, Anderson H, Iveson T, Hickish T, Lofts F, Norman A | display-authors = 6 | title = Prospective randomized trial comparing mitomycin, cisplatin, and protracted venous-infusion fluorouracil (PVI 5-FU) With epirubicin, cisplatin, and PVI 5-FU in advanced esophagogastric cancer | journal = Journal of Clinical Oncology | volume = 20 | issue = 8 | pages = 1996–2004 | date = April 2002 | pmid = 11956258 | doi = 10.1200/JCO.2002.08.105 }}</ref> However, a meta-analysis in 2017 failed to demonstrate that [[anthracyclines]] such as [[epirubicin]] improved survival.<ref>{{cite journal | last1=Haj Mohammad | first1=N. | last2=ter Veer | first2=E. | last3=Ngai | first3=L. | last4=Mali | first4=R. | last5=van Oijen | first5=M. G. H. | last6=van Laarhoven | first6=H. W. M. | title=Optimal first-line chemotherapeutic treatment in patients with locally advanced or metastatic esophagogastric carcinoma: triplet versus doublet chemotherapy: a systematic literature review and meta-analysis | journal=Cancer and Metastasis Reviews | volume=34 | issue=3 | date=2015 | issn=0167-7659 | pmid=26267802 | pmc=4573655 | doi=10.1007/s10555-015-9576-y | doi-access=free | pages=429–441 | url=https://link.springer.com/content/pdf/10.1007/s10555-015-9576-y.pdf | access-date=2025-01-05}}</ref>  Therefore in metastatic cancer, a two drug combination is now standard. Most recently with the addition of immune checkpoint inhibitors such as [[nivolumab]]<ref>{{cite journal |display-authors=3| last1=Doki | first1=Yuichiro | last2=Ajani | first2=Jaffer A. | last3=Kato | first3=Ken | last4=Xu | first4=Jianming | last5=Wyrwicz | first5=Lucjan | last6=Motoyama | first6=Satoru | last7=Ogata | first7=Takashi | last8=Kawakami | first8=Hisato | last9=Hsu | first9=Chih-Hung | last10=Adenis | first10=Antoine | last11=El Hajbi | first11=Farid | last12=Di Bartolomeo | first12=Maria | last13=Braghiroli | first13=Maria I. | last14=Holtved | first14=Eva | last15=Ostoich | first15=Sandra A. | last16=Kim | first16=Hye R. | last17=Ueno | first17=Masaki | last18=Mansoor | first18=Wasat | last19=Yang | first19=Wen-Chi | last20=Liu | first20=Tianshu | last21=Bridgewater | first21=John | last22=Makino | first22=Tomoki | last23=Xynos | first23=Ioannis | last24=Liu | first24=Xuan | last25=Lei | first25=Ming | last26=Kondo | first26=Kaoru | last27=Patel | first27=Apurva | last28=Gricar | first28=Joseph | last29=Chau | first29=Ian | last30=Kitagawa | first30=Yuko | title=Nivolumab Combination Therapy in Advanced Esophageal Squamous-Cell Carcinoma | journal=New England Journal of Medicine | volume=386 | issue=5 | date=2022-02-03 | issn=0028-4793 | doi=10.1056/NEJMoa2111380 | doi-access=free | pages=449–462 | pmid=35108470 }}</ref> or [[pembrolizumab]]<ref>{{cite journal| vauthors=Rha SY, Oh DY, Yañez P, et al.| title=Pembrolizumab plus chemotherapy versus placebo plus chemotherapy for HER2-negative advanced gastric cancer (KEYNOTE-859): a multicentre, randomised, double-blind, phase 3 trial | journal=The Lancet Oncology | volume=24 | issue=11 | date=2023 | doi=10.1016/S1470-2045(23)00515-6 | pages=1181–1195 | pmid=37875143 }}</ref> which prolongs disease-free survival after neoadjuvant chemoradiotherapy and surgery in patients with residual locally advanced esophageal squamous cell carcinoma, they are increasingly being incorporated into combined treatment strategies and are under investigation in both neoadjuvant and chemoradiation regimens.<ref>{{Cite journal |last1=Comer |first1=Margaret |last2=Chen |first2=Hubert |last3=Wheless |first3=Margaret C. |last4=Gibson |first4=Michael K. |date=2025-09-30 |title=Current and novel treatment approaches for locally advanced esophageal squamous cell carcinoma: a narrative review |url=https://aoe.amegroups.org/article/view/8535 |journal=Annals of Esophagus |language=en |volume=8 |page=21 |doi=10.21037/aoe-25-12|doi-access=free |issn=2616-2784}}</ref>


[[Chemotherapy]] may be given after surgery (adjuvant, i.e. to reduce risk of recurrence), before surgery (neoadjuvant) or if surgery is not possible. [[Cisplatin]] and [[fluorouracil]] were most commonly used a, however the REAL-2 trial confirmed that [[oxaliplatin]] and [[capecitabine]] were non-inferior and potentially more convenient.<ref>{{cite journal | last1=Okines | first1=A.F.C. | last2=Norman | first2=A.R. | last3=McCloud | first3=P. | last4=Kang | first4=Y.-K. | last5=Cunningham | first5=D. | title=Meta-analysis of the REAL-2 and ML17032 trials: evaluating capecitabine-based combination chemotherapy and infused 5-fluorouracil-based combination chemotherapy for the treatment of advanced oesophago-gastric cancer | journal=Annals of Oncology | volume=20 | issue=9 | date=2009 | doi=10.1093/annonc/mdp047 | doi-access=free | pages=1529–1534 | url=http://www.annalsofoncology.org/article/S092375341940450X/pdf | access-date=2025-01-05}}</ref>
[[Chemotherapy]] may be given after surgery (adjuvant, i.e. to reduce risk of recurrence), before surgery (neoadjuvant) or if surgery is not possible. [[Cisplatin]] and [[fluorouracil]] were most commonly used a, however the REAL-2 trial confirmed that [[oxaliplatin]] and [[capecitabine]] were non-inferior and potentially more convenient.<ref>{{cite journal | last1=Okines | first1=A.F.C. | last2=Norman | first2=A.R. | last3=McCloud | first3=P. | last4=Kang | first4=Y.-K. | last5=Cunningham | first5=D. | title=Meta-analysis of the REAL-2 and ML17032 trials: evaluating capecitabine-based combination chemotherapy and infused 5-fluorouracil-based combination chemotherapy for the treatment of advanced oesophago-gastric cancer | journal=Annals of Oncology | volume=20 | issue=9 | date=2009 | doi=10.1093/annonc/mdp047 | doi-access=free | pages=1529–1534 | pmid=19474114 | url=http://www.annalsofoncology.org/article/S092375341940450X/pdf | access-date=2025-01-05}}</ref>


[[Radiotherapy]] is given before, during, or after chemotherapy or surgery, and sometimes on its own to control symptoms. In patients with localized disease but contraindications to surgery, "radical radiotherapy" may be used with curative intent.
[[Radiotherapy]] is given before, during, or after chemotherapy or surgery, and sometimes on its own to control symptoms. In patients with localized disease but contraindications to surgery, "radical radiotherapy" may be used with curative intent.{{medcn|date=November 2025}}


===Other approaches===
===Other approaches===
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In general, the prognosis of esophageal cancer is quite poor, because most patients present with advanced disease. By the time the first symptoms (such as difficulty swallowing) appear, the disease has already progressed. The overall [[five-year survival rate]] (5YSR) in the United States is around 15%,<!-- source pub 2003 UPDATE: GLOBALIZE --> and most people die within the first year of diagnosis.<ref name="Polednak">{{cite journal | vauthors = Polednak AP | title = Trends in survival for both histologic types of esophageal cancer in US surveillance, epidemiology and end results areas | journal = International Journal of Cancer | volume = 105 | issue = 1 | pages = 98–100 | date = May 2003 | pmid = 12672037 | doi = 10.1002/ijc.11029 | s2cid = 6539230 | doi-access = free }}</ref> The latest survival data for England and Wales (patients diagnosed during 2007) show that only one in ten people survives esophageal cancer for at least ten years.<ref>{{cite web|url=http://www.cancerresearchuk.org/cancer-info/cancerstats/types/oesophagus/survival/|title=Oesophageal cancer survival statistics|website=Cancer Research UK|url-status=live|archive-url=https://web.archive.org/web/20141008170901/http://www.cancerresearchuk.org/cancer-info/cancerstats/types/oesophagus/survival/|archive-date=2014-10-08|date=2015-05-15}}</ref>
In general, the prognosis of esophageal cancer is quite poor, because most patients present with advanced disease. By the time the first symptoms (such as difficulty swallowing) appear, the disease has already progressed. The overall [[five-year survival rate]] (5YSR) in the United States is around 15%,<!-- source pub 2003 UPDATE: GLOBALIZE --> and most people die within the first year of diagnosis.<ref name="Polednak">{{cite journal | vauthors = Polednak AP | title = Trends in survival for both histologic types of esophageal cancer in US surveillance, epidemiology and end results areas | journal = International Journal of Cancer | volume = 105 | issue = 1 | pages = 98–100 | date = May 2003 | pmid = 12672037 | doi = 10.1002/ijc.11029 | s2cid = 6539230 | doi-access = free }}</ref> The latest survival data for England and Wales (patients diagnosed during 2007) show that only one in ten people survives esophageal cancer for at least ten years.<ref>{{cite web|url=http://www.cancerresearchuk.org/cancer-info/cancerstats/types/oesophagus/survival/|title=Oesophageal cancer survival statistics|website=Cancer Research UK|url-status=live|archive-url=https://web.archive.org/web/20141008170901/http://www.cancerresearchuk.org/cancer-info/cancerstats/types/oesophagus/survival/|archive-date=2014-10-08|date=2015-05-15}}</ref>


Individualized prognosis depends largely on stage. Those with cancer restricted entirely to the esophageal [[mucosa]] have about an 80% 5YSR, but [[submucosa]]l involvement brings this down to less than 50%. Extension into the [[muscularis propria]] (muscle layer of the esophagus) suggests a 20% 5YSR, and extension to the structures adjacent to the esophagus predict a 7% 5YSR. Patients with distant metastases (who are not candidates for curative surgery) have a less than 3% 5YSR.<ref>{{Cite web|title=Esophageal Cancer Treatment {{!}} How We Treat Esophageal Cancer {{!}} KAIZEN Hospital|url=https://www.kaizenhospital.com/patients-awareness/esophagus/cancer-esophagus/|access-date=2021-01-17|website=www.kaizenhospital.com|archive-date=2021-01-21|archive-url=https://web.archive.org/web/20210121053055/https://www.kaizenhospital.com/patients-awareness/esophagus/cancer-esophagus/|url-status=dead}}</ref>
Individualized prognosis depends largely on stage. Those with cancer restricted entirely to the esophageal [[mucosa]] have about an 80% 5YSR, but [[submucosa]]l involvement brings this down to less than 50%. Extension into the [[muscularis propria]] (muscle layer of the esophagus) suggests a 20% 5YSR, and extension to the structures adjacent to the esophagus predict a 7% 5YSR. Patients with distant metastases (who are not candidates for curative surgery) have a less than 3% 5YSR.<ref>{{Cite web|title=Esophageal Cancer Treatment {{!}} How We Treat Esophageal Cancer {{!}} KAIZEN Hospital|url=https://www.kaizenhospital.com/patients-awareness/esophagus/cancer-esophagus/|access-date=2021-01-17|website=www.kaizenhospital.com|archive-date=2021-01-21|archive-url=https://web.archive.org/web/20210121053055/https://www.kaizenhospital.com/patients-awareness/esophagus/cancer-esophagus/}}</ref>


==Epidemiology==
==Epidemiology==
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ESCC (esophageal squamous-cell carcinoma) comprises 60–70% of all cases of esophageal cancer worldwide, while EAC (esophageal adenocarcinoma) accounts for a further 20–30% (melanomas, leiomyosarcomas, carcinoids and lymphomas are less common types).<ref name="Conteduca-2012"/> The incidence of the two main types of esophageal cancer varies greatly between different geographical areas.<ref name="Napier-2014">{{cite journal | vauthors = Napier KJ, Scheerer M, Misra S | title = Esophageal cancer: A Review of epidemiology, pathogenesis, staging workup and treatment modalities | journal = World Journal of Gastrointestinal Oncology | volume = 6 | issue = 5 | pages = 112–120 | date = May 2014 | pmid = 24834141 | pmc = 4021327 | doi = 10.4251/wjgo.v6.i5.112 | doi-access = free }}</ref> In general, ESCC is more common in the [[developing world]], and EAC is more common in the [[developed world]].<ref name=WCR2014/>
ESCC (esophageal squamous-cell carcinoma) comprises 60–70% of all cases of esophageal cancer worldwide, while EAC (esophageal adenocarcinoma) accounts for a further 20–30% (melanomas, leiomyosarcomas, carcinoids and lymphomas are less common types).<ref name="Conteduca-2012"/> The incidence of the two main types of esophageal cancer varies greatly between different geographical areas.<ref name="Napier-2014">{{cite journal | vauthors = Napier KJ, Scheerer M, Misra S | title = Esophageal cancer: A Review of epidemiology, pathogenesis, staging workup and treatment modalities | journal = World Journal of Gastrointestinal Oncology | volume = 6 | issue = 5 | pages = 112–120 | date = May 2014 | pmid = 24834141 | pmc = 4021327 | doi = 10.4251/wjgo.v6.i5.112 | doi-access = free }}</ref> In general, ESCC is more common in the [[developing world]], and EAC is more common in the [[developed world]].<ref name=WCR2014/>


The worldwide [[Incidence rate#Incidence rate|incidence rate]] of ESCC in 2012 was 5.2 new cases per 100,000 person-years, with a male predominance (7.7 per 100,000  in  men  vs. 2.8  in  women).<ref name="Arnold-2014">{{cite journal | vauthors = Arnold M, Soerjomataram I, Ferlay J, Forman D | title = Global incidence of oesophageal cancer by histological subtype in 2012 | journal = Gut | volume = 64 | issue = 3 | pages = 381–387 | date = March 2015 | pmid = 25320104 | doi = 10.1136/gutjnl-2014-308124 | doi-access = free }}</ref> It was the common type in 90% of the countries studied.<ref name="Arnold-2014"/> ESCC is particularly frequent in the so-called "Asian esophageal cancer belt", an area that passes through [[northern China]], southern [[Russia]], north-eastern [[Iran]], northern [[Afghanistan]] and eastern [[Turkey]].<ref name="Conteduca-2012">{{cite journal | vauthors = Conteduca V, Sansonno D, Ingravallo G, Marangi S, Russi S, Lauletta G, Dammacco F | title = Barrett's esophagus and esophageal cancer: an overview | journal = International Journal of Oncology | volume = 41 | issue = 2 | pages = 414–424 | date = August 2012 | pmid = 22615011 | doi = 10.3892/ijo.2012.1481 | url = http://www.spandidos-publications.com/ijo/41/2/414 | url-status = live | doi-access = free | archive-url = https://web.archive.org/web/20130517181200/http://www.spandidos-publications.com/ijo/41/2/414 | archive-date = 2013-05-17 }}</ref> In 2012, about 80% of ESCC cases worldwide occurred in central and south-eastern  Asia, and over half (53%) of all cases were in China.<ref name="Arnold-2014"/> The countries with the highest estimated national incidence rates were (in Asia) [[Mongolia]] and [[Turkmenistan]] and (in Africa)  [[Malawi]],  [[Kenya]] and  [[Uganda]].<ref name="Arnold-2014"/> The problem of esophageal cancer has long been recognized in the eastern and southern parts of [[Sub-Saharan Africa]], where ESCC appears to predominate.<ref name="Kachala-2010">{{cite journal | vauthors = Kachala R | title = Systematic review: epidemiology of oesophageal cancer in Sub-Saharan Africa | journal = Malawi Medical Journal | volume = 22 | issue = 3 | pages = 65–70 | date = September 2010 | pmid = 21977849 | pmc = 3345777 | doi = 10.4314/mmj.v22i3.62190 }}</ref>
The worldwide [[Incidence rate#Incidence rate|incidence rate]] of ESCC in 2012 was 5.2 new cases per 100,000 person-years, with a male predominance (7.7 per 100,000  in  men  vs. 2.8  in  women).<ref name="Arnold-2014">{{cite journal | vauthors = Arnold M, Soerjomataram I, Ferlay J, Forman D | title = Global incidence of oesophageal cancer by histological subtype in 2012 | journal = Gut | volume = 64 | issue = 3 | pages = 381–387 | date = March 2015 | pmid = 25320104 | doi = 10.1136/gutjnl-2014-308124 | doi-access = free }}</ref> It was the common type in 90% of the countries studied.<ref name="Arnold-2014"/> ESCC is particularly frequent in the so-called "Asian esophageal cancer belt", an area that passes through [[northern China]], southern [[Russia]], north-eastern [[Iran]], northern [[Afghanistan]] and eastern [[Turkey]].<ref name="Conteduca-2012">{{cite journal | vauthors = Conteduca V, Sansonno D, Ingravallo G, Marangi S, Russi S, Lauletta G, Dammacco F | title = Barrett's esophagus and esophageal cancer: an overview | journal = International Journal of Oncology | volume = 41 | issue = 2 | pages = 414–424 | date = August 2012 | pmid = 22615011 | doi = 10.3892/ijo.2012.1481 | url = http://www.spandidos-publications.com/ijo/41/2/414 | url-status = live | doi-access = free | archive-url = https://web.archive.org/web/20130517181200/http://www.spandidos-publications.com/ijo/41/2/414 | archive-date = 2013-05-17 }}</ref> In 2012, about 80% of ESCC cases worldwide occurred in central and south-eastern  Asia, and over half (53%) of all cases were in China.<ref name="Arnold-2014"/>{{Verify source|date=October 2025|reason=Although the exact wording in the source abstract is used, i.e., "central and south-eastern Asia," Figures 2B and 5B in the source don't match this. "Central, southern (including India, Pakistan, etc.), eastern (including China, Japan, etc.), and south-eastern Asia" may align better with the figures.}} The countries with the highest estimated national incidence rates were (in Asia) [[Mongolia]] and [[Turkmenistan]] and (in Africa)  [[Malawi]],  [[Kenya]] and  [[Uganda]].<ref name="Arnold-2014"/> The problem of esophageal cancer has long been recognized in the eastern and southern parts of [[Sub-Saharan Africa]], where ESCC appears to predominate.<ref name="Kachala-2010">{{cite journal | vauthors = Kachala R | title = Systematic review: epidemiology of oesophageal cancer in Sub-Saharan Africa | journal = Malawi Medical Journal | volume = 22 | issue = 3 | pages = 65–70 | date = September 2010 | pmid = 21977849 | pmc = 3345777 | doi = 10.4314/mmj.v22i3.62190 }}</ref>


In Western countries, EAC has become the dominant form of the disease, following an increase in incidence over recent decades (in contrast to the incidence of ESCC, which has remained largely stable).<ref name=Sta2013/><ref name="Lagergren-2013">{{cite journal | vauthors = Lagergren J, Lagergren P | title = Recent developments in esophageal adenocarcinoma | journal = CA | volume = 63 | issue = 4 | pages = 232–248 | year = 2013 | pmid = 23818335 | doi = 10.3322/caac.21185 | doi-access = free }}</ref> In 2012, the global incidence rate for EAC was 0.7 per 100,000 with a strong male predominance (1.1 per 100,000 in men vs. 0.3 in women). Areas with particularly high incidence rates include northern and western Europe, North America and [[Oceania]]. The countries with highest recorded rates were the [[UK]], [[Netherlands]], [[Ireland]], [[Iceland]] and [[New Zealand]].<ref name="Arnold-2014"/>
In Western countries, EAC has become the dominant form of the disease, following an increase in incidence over recent decades (in contrast to the incidence of ESCC, which has remained largely stable).<ref name=Sta2013/><ref name="Lagergren-2013">{{cite journal | vauthors = Lagergren J, Lagergren P | title = Recent developments in esophageal adenocarcinoma | journal = CA | volume = 63 | issue = 4 | pages = 232–248 | year = 2013 | pmid = 23818335 | doi = 10.3322/caac.21185 | doi-access = free }}</ref> In 2012, the global incidence rate for EAC was 0.7 per 100,000 with a strong male predominance (1.1 per 100,000 in men vs. 0.3 in women). Areas with particularly high incidence rates include northern and western Europe, North America and [[Oceania]]. The countries with highest recorded rates were the [[UK]], [[Netherlands]], [[Ireland]], [[Iceland]] and [[New Zealand]].<ref name="Arnold-2014"/>
Line 230: Line 234:
The risk of esophageal squamous-cell carcinoma may be reduced in people using [[aspirin]] or related [[NSAID]]s,<ref>{{cite journal | vauthors = Sun L, Yu S | title = Meta-analysis: non-steroidal anti-inflammatory drug use and the risk of esophageal squamous cell carcinoma | journal = Diseases of the Esophagus | volume = 24 | issue = 8 | pages = 544–549 | date = November 2011 | pmid = 21539676 | doi = 10.1111/j.1442-2050.2011.01198.x }}</ref> but in the absence of [[randomized controlled trial]]s the current evidence is inconclusive.<ref name=WCR2014/><ref name="Lagergren-2013" />
The risk of esophageal squamous-cell carcinoma may be reduced in people using [[aspirin]] or related [[NSAID]]s,<ref>{{cite journal | vauthors = Sun L, Yu S | title = Meta-analysis: non-steroidal anti-inflammatory drug use and the risk of esophageal squamous cell carcinoma | journal = Diseases of the Esophagus | volume = 24 | issue = 8 | pages = 544–549 | date = November 2011 | pmid = 21539676 | doi = 10.1111/j.1442-2050.2011.01198.x }}</ref> but in the absence of [[randomized controlled trial]]s the current evidence is inconclusive.<ref name=WCR2014/><ref name="Lagergren-2013" />


The genomics of esophageal adenocarcinoma is being studied using [[cancer genome sequencing]]. Esophageal adenocarcinoma is characterized by complex tumor genomes <ref>{{cite journal | vauthors = Frankell AM, Jammula S, Li X, Contino G, Killcoyne S, Abbas S, Perner J, Bower L, Devonshire G, Ococks E, Grehan N, Mok J, O'Donovan M, MacRae S, Eldridge MD, Tavaré S, Fitzgerald RC | display-authors = 6 | title = The landscape of selection in 551 esophageal adenocarcinomas defines genomic biomarkers for the clinic | journal = Nature Genetics | volume = 51 | issue = 3 | pages = 506–516 | date = March 2019 | pmid = 30718927 | pmc = 6420087 | doi = 10.1038/s41588-018-0331-5 }}</ref><ref name=":0">{{cite journal | vauthors = M Naeini M, Newell F, Aoude LG, Bonazzi VF, Patel K, Lampe G, Koufariotis LT, Lakis V, Addala V, Kondrashova O, Johnston RL, Sharma S, Brosda S, Holmes O, Leonard C, Wood S, Xu Q, Thomas J, Walpole E, Tao Mai G, Ackland SP, Martin J, Burge M, Finch R, Karapetis CS, Shannon J, Nott L, Bohmer R, Wilson K, Barnes E, Zalcberg JR, Mark Smithers B, Simes J, Price T, Gebski V, Nones K, Watson DI, Pearson JV, Barbour AP, Waddell N | display-authors = 6 | title = Multi-omic features of oesophageal adenocarcinoma in patients treated with preoperative neoadjuvant therapy | journal = Nature Communications | volume = 14 | issue = 1 | pages = 3155 | date = May 2023 | pmid = 37258531 | pmc = 10232490 | doi = 10.1038/s41467-023-38891-x | bibcode = 2023NatCo..14.3155M }}</ref> with heterogeneity within the tumor micro-environment.<ref name=":0" />
The genomics of esophageal adenocarcinoma is being studied using [[cancer genome sequencing]]. Esophageal adenocarcinoma is characterized by complex tumor genomes <ref>{{cite journal | vauthors = Frankell AM, Jammula S, Li X, Contino G, Killcoyne S, Abbas S, Perner J, Bower L, Devonshire G, Ococks E, Grehan N, Mok J, O'Donovan M, MacRae S, Eldridge MD, Tavaré S, Fitzgerald RC | display-authors = 6 | title = The landscape of selection in 551 esophageal adenocarcinomas defines genomic biomarkers for the clinic | journal = Nature Genetics | volume = 51 | issue = 3 | pages = 506–516 | date = March 2019 | pmid = 30718927 | pmc = 6420087 | doi = 10.1038/s41588-018-0331-5 }}</ref><ref name=":0">{{cite journal | vauthors = M Naeini M, Newell F, Aoude LG, Bonazzi VF, Patel K, Lampe G, Koufariotis LT, Lakis V, Addala V, Kondrashova O, Johnston RL, Sharma S, Brosda S, Holmes O, Leonard C, Wood S, Xu Q, Thomas J, Walpole E, Tao Mai G, Ackland SP, Martin J, Burge M, Finch R, Karapetis CS, Shannon J, Nott L, Bohmer R, Wilson K, Barnes E, Zalcberg JR, Mark Smithers B, Simes J, Price T, Gebski V, Nones K, Watson DI, Pearson JV, Barbour AP, Waddell N | display-authors = 6 | title = Multi-omic features of oesophageal adenocarcinoma in patients treated with preoperative neoadjuvant therapy | journal = Nature Communications | volume = 14 | issue = 1 | article-number = 3155 | date = May 2023 | pmid = 37258531 | pmc = 10232490 | doi = 10.1038/s41467-023-38891-x | bibcode = 2023NatCo..14.3155M }}</ref> with heterogeneity within the tumor micro-environment.<ref name=":0" />


== See also ==
== See also ==

Latest revision as of 22:56, 11 December 2025

Template:Short description Template:Use American English Template:Cs1 config Template:Infobox medical condition (new)

Esophageal cancer (American English) or oesophageal cancer (British English) is cancer arising from the esophagus—the food pipe that runs between the throat and the stomach.[1] Symptoms often include difficulty in swallowing and weight loss.[2] Other symptoms may include pain when swallowing, a hoarse voice, enlarged lymph nodes ("glands") around the collarbone, a dry cough, and possibly coughing up or vomiting blood.[2]

The two main sub-types of the disease are esophageal squamous-cell carcinoma (often abbreviated to ESCC),[3] which is more common in the developing world, and esophageal adenocarcinoma (EAC), which is more common in the developed world.[1] A number of less common types also occur.[1] Squamous-cell carcinoma arises from the epithelial cells that line the esophagus.[4] Adenocarcinoma arises from glandular cells present in the lower third of the esophagus, often where they have already transformed to intestinal cell type (a condition known as Barrett's esophagus).[1][5]

Causes of the squamous-cell type include tobacco, alcohol, very hot drinks, poor diet, and chewing betel nut.[6][7] The most common causes of the adenocarcinoma type are smoking tobacco, obesity, and acid reflux.[6] In addition, for patients with achalasia, candidiasis (overgrowth of the esophagus with the fungus candida) is the most important risk factor.[8]

The disease is diagnosed by biopsy done by an endoscope (a fiberoptic camera).[9] Prevention includes stopping smoking and eating a healthy diet.[2][1] Treatment is based on the cancer's stage and location, together with the person's general condition and individual preferences.[9] Small localized squamous-cell cancers may be treated with surgery alone with the hope of a cure.[9] In most other cases, chemotherapy with or without radiation therapy is used along with surgery.[9] Larger tumors may have their growth slowed with chemotherapy and radiation therapy.[1] In the presence of extensive disease or if the affected person is not fit enough to undergo surgery, palliative care is often recommended.[9]

As of 2018, esophageal cancer was the eighth-most common cancer globally with 572,000 new cases during the year. It caused about 509,000 deaths that year, up from 345,000 in 1990.[10][11] Rates vary widely among countries, with about half of all cases occurring in China.[1] It is around three times more common in men than in women.[1] Outcomes are related to the extent of the disease and other medical conditions, but generally tend to be fairly poor, as diagnosis is often late.[1][12] Five-year survival rates are around 13% to 18%.[2][13]

Signs and symptoms

Prominent symptoms usually do not appear until the cancer has infiltrated over 60% of the circumference of the esophageal tube, by which time the tumor is already in an advanced stage.[14] Onset of symptoms is usually caused by narrowing of the tube due to the physical presence of the tumor.[15]

The first and the most common symptom is usually difficulty in swallowing, which is often experienced first with solid foods and later with softer foods and liquids.[2] Pain when swallowing is less usual at first.[2] Weight loss is often an initial sign in cases of squamous-cell carcinoma, though not usually in cases of adenocarcinoma.[16] Eventual weight loss due to reduced appetite and undernutrition is common.[17] Pain behind the breastbone or in the region around the stomach often feels like heartburn. The pain can frequently be severe, worsening when food of any sort is swallowed. Another sign may be an unusually husky, raspy, or hoarse-sounding cough, a result of the tumor affecting the recurrent laryngeal nerve.

The presence of the tumor may disrupt the normal contractions of the esophagus when swallowing. This can lead to nausea and vomiting, regurgitation of food and coughing.[14] There is also an increased risk of aspiration pneumonia[14] due to food entering the airways through the abnormal connections (fistulas) that may develop between the esophagus and the trachea (windpipe).[12] Early signs of this serious complication may be coughing on drinking or eating.[18] The tumor surface may be fragile and bleed, causing vomiting of blood. Compression of local structures occurs in advanced disease, leading to such problems as upper airway obstruction and superior vena cava syndrome. Hypercalcemia (excess calcium in the blood) may occur.[14]

If the cancer has spread elsewhere, symptoms related to metastatic disease may appear. Common sites of spread include nearby lymph nodes, the liver, lungs and bone.[14] Liver metastasis can cause jaundice and abdominal swelling (ascites). Lung metastasis can cause, among other symptoms, impaired breathing due to excess fluid around the lungs (pleural effusion), and dyspnea (the feelings often associated with impaired breathing).

Causes

The two main types (i.e. squamous-cell carcinoma and adenocarcinoma) have distinct sets of risk factors.[16] Squamous-cell carcinoma is linked to lifestyle factors such as smoking and alcohol.[19] Adenocarcinoma has been linked to effects of long-term acid reflux.[19] Tobacco is a risk factor for both types.[16] Both types are more common in people over 60 years of age.[20]

Squamous-cell carcinoma

The two major risk factors for esophageal squamous-cell carcinoma are tobacco (smoking or chewing) and alcohol.[1] The combination of tobacco and alcohol has a strong synergistic effect.[21] Some data suggest that about half of all cases are due to tobacco and about one-third to alcohol, while over three-quarters of the cases in men are due to the combination of smoking and heavy drinking.[1] Risks associated with alcohol appear to be linked to its aldehyde metabolite and to mutations in certain related enzymes.[16] Such metabolic variants are relatively common in Asia.[1]

Other relevant risk factors include regular consumption of very hot drinks (over 65 °C or 149 °F)[22][23] and ingestion of caustic substances.[1] High levels of dietary exposure to nitrosamines (chemical compounds found both in tobacco smoke and certain foodstuffs) also appear to be a relevant risk factor.[16] Unfavorable dietary patterns seem to involve exposure to nitrosamines through processed and barbecued meats, pickled vegetables, etc., and a low intake of fresh foods.[1] Other associated factors include nutritional deficiencies, low socioeconomic status, and poor oral hygiene.[16] Chewing betel nut (areca) is an important risk factor in Asia.[7]

Physical trauma may increase the risk.[24] This may include the drinking of very hot drinks.[6]

Adenocarcinoma

File:Esophageal cancer-2626-02.jpg
Esophageal cancer (lower part) as a result of Barrettʼs esophagus

Male predominance is particularly strong in esophageal adenocarcinoma, occurring about 7 to 10 times more frequently in men.[25] This imbalance may be related to the characteristics and interactions of other known risk factors, including acid reflux and obesity.[25]

Gastroesophageal reflux disease

The long-term erosive effects of acid reflux (an extremely common condition, also known as gastroesophageal reflux disease or GERD) have been strongly linked to this type of cancer.[26] Longstanding GERD can induce a change of cell type in the lower portion of the esophagus in response to erosion of its squamous lining.[26] This phenomenon, known as Barrett's esophagus, seems to appear about 20 years later in women than in men, possibly due to hormonal factors.[26]

At a mechanistic level, in the esophagus there is a small HOXA13 expressing compartment that is more resistant to bile and acids as the normal squamous epithelium and that is prone to both intestinal differentiation as well as oncogenic transformation. Following GERD this HOXA13-expressing compartment outcompetes the normal squamous compartment, leading to the intestinal aspect of the esophagus and increased propensity to the development of esophageal cancer.[27]

Having symptomatic GERD or bile reflux makes Barrett's esophagus more likely, which in turn raises the risk of further changes that can ultimately lead to adenocarcinoma.[16] Bile reflux containing unconjugated bile acids, including deoxycholic acid and chenodeoxycholic acid, appears to contribute to esophageal adenocarcinoma carcinogenesis by inducing oxidative stress and DNA damage.[28] The risk of developing adenocarcinoma in the presence of Barrett's esophagus is unclear, and may in the past have been overestimated.[1]

Obesity

Being obese or overweight is strongly associated with risk of developing esophageal adenocarcinoma, and may in fact be the strongest of any type of obesity-related cancer, though the reasons for this remain unclear.[29][30] Abdominal obesity seems to be of particular relevance, given the closeness of its association with this type of cancer, as well as with both GERD and Barrett's esophagus.[30] This type of obesity is characteristic of men.[30] Physiologically, it stimulates GERD and also has other chronic inflammatory effects.[26]

Helicobacter pylori

Helicobacter pylori infection (a common occurrence thought to have affected over half of the world's population) is not a risk factor for esophageal adenocarcinoma and actually appears to be protective. Despite being a cause of GERD and a risk factor for gastric cancer, the infection seems to be associated with a reduced risk of esophageal adenocarcinoma of as much as 50%.[31][32] The biological explanation for a protective effect is unclear.[32] One explanation is that some strains of H. pylori reduce stomach acid, thereby reducing damage by GERD.[33] Decreasing rates of H. pylori infection in Western populations over recent decades, which have been linked to less overcrowding in households, could be a factor in the concurrent increase in esophageal adenocarcinoma.[31]

Other risk factors for esophageal adenocarcinoma

Female hormones may also have a protective effect, as EAC is not only much less common in women but develops later in life, by an average of 20 years. Although studies of many reproductive factors have not produced a clear picture, risk seems to decline for the mother in line with prolonged periods of breastfeeding.[31]

Tobacco smoking increases risk, but the effect in esophageal adenocarcinoma is slight compared to that in squamous cell carcinoma, and alcohol has not been demonstrated to be a cause.[31]

Related conditions

  • Head and neck cancer is associated with second primary tumors in the region, including esophageal squamous-cell carcinomas, due to field cancerization (i.e. a regional reaction to long-term carcinogenic exposure).[34][35]
  • History of radiation therapy for other conditions in the chest is a risk factor for esophageal adenocarcinoma.[16]
  • Corrosive injury to the esophagus by accidentally or intentionally swallowing caustic substances is a risk factor for squamous cell carcinoma.[1]
  • Tylosis with esophageal cancer is a rare familial disease with autosomal dominant inheritance that has been linked to a mutation in the RHBDF2 gene, present on chromosome 17: it involves thickening of the skin of the palms and soles and a high lifetime risk of squamous cell carcinoma.[1][36]
  • Achalasia (i.e. lack of the involuntary reflex in the esophagus after swallowing) appears to be a risk factor for both main types of esophageal cancer, at least in men, due to stagnation of trapped food and drink.[37]
  • Plummer–Vinson syndrome (a rare disease that involves esophageal webs) is also a risk factor.[1]
  • There is some evidence suggesting a possible causal association between human papillomavirus (HPV) and esophageal squamous-cell carcinoma.[38] The relationship is unclear.[39] Possible relevance of HPV could be greater in places that have a particularly high incidence of this form of the disease,[40] as in some Asian countries, including China.[41]
  • There is an association between celiac disease and esophageal cancer. People with untreated celiac disease have a higher risk, but this risk decreases with time after diagnosis, probably due to the adoption of a gluten-free diet, which seems to have a protective role against development of malignancy in people with celiac disease. However, the delay in diagnosis and initiation of a gluten-free diet seems to increase the risk of malignancy. Moreover, in some cases the detection of celiac disease is due to the development of cancer, whose early symptoms are similar to some that may appear in celiac disease.[42]

Diagnosis

File:UpperGIEsophagealCAMark.png
Esophageal cancer as shown by a filling defect during an upper GI series

Clinical evaluation

Although an occlusive tumor may be suspected on a barium swallow or barium meal, the diagnosis is best made with an examination using an endoscope. This involves the passing of a flexible tube with a light and camera down the esophagus and examining the wall, and is called an esophagogastroduodenoscopy. Biopsies taken of suspicious lesions are then examined histologically for signs of malignancy.

Additional testing is needed to assess how much the cancer has spread (see Template:Section link, below). Computed tomography (CT) of the chest, abdomen and pelvis can evaluate whether the cancer has spread to adjacent tissues or distant organs (especially liver and lymph nodes). The sensitivity of a CT scan is limited by its ability to detect masses (e.g. enlarged lymph nodes or involved organs) generally larger than 1 cm.[43][44] Positron emission tomography is also used to estimate the extent of the disease and is regarded as more precise than CT alone.[45] PET/MR as a novel modality has shown promising results in preoperative staging with fair feasibility and good correlation in comparison to PET/CT. It can enhance tissue differentiation with lowering the radiation dose to the patient.[46] Esophageal endoscopic ultrasound can provide staging information regarding the level of tumor invasion, and possible spread to regional lymph nodes.

The location of the tumor is generally measured by the distance from the teeth. The esophagus (25 cm or 10 in long) is commonly divided into three parts for purposes of determining the location. Adenocarcinomas tend to occur nearer the stomach and squamous cell carcinomas nearer the throat, but either may arise anywhere in the esophagus.

Types

Esophageal cancers are typically carcinomas that arise from the epithelium, or surface lining, of the esophagus. Most esophageal cancers fall into one of two classes: esophageal squamous-cell carcinomas (ESCC), which are similar to head and neck cancer in their appearance and association with tobacco and alcohol consumption—and esophageal adenocarcinomas (EAC), which are often associated with a history of GERD and Barrett's esophagus. A rule of thumb is that a cancer in the upper two-thirds is likely to be ESCC and one in the lower one-third EAC.

Rare histologic types of esophageal cancer include different variants of squamous-cell carcinoma, and non-epithelial tumors, such as leiomyosarcoma, melanoma, rhabdomyosarcoma and lymphoma, among others.[47][48]

Staging

Staging is based on the TNM staging system, which classifies the amount of tumor invasion (T), involvement of lymph nodes (N), and distant metastasis (M).[16] The currently preferred classification is the 2010 AJCC staging system for cancer of the esophagus and the esophagogastric junction.[16] To help guide clinical decision making, this system also incorporates information on cell type (ESCC, EAC, etc.), grade (degree of differentiation – an indication of the biological aggressiveness of the cancer cells), and tumor location (upper, middle, lower, or junctional[49]).[50]

Prevention

Prevention includes stopping smoking or chewing tobacco.[1] Overcoming addiction to areca chewing in Asia is another promising strategy for the prevention of esophageal squamous-cell carcinoma.[7] The risk can also be reduced by maintaining a normal body weight.[51] According to a 2022 umbrella review, calcium intake could be associated with lower risk.[52]

According to the National Cancer Institute, "diets high in cruciferous (cabbage, broccoli/broccolini, cauliflower, Brussels sprouts) and green and yellow vegetables and fruits are associated with a decreased risk of esophageal cancer."[53] Dietary fiber is thought to be protective, especially against esophageal adenocarcinoma.[54] There is no evidence that vitamin supplements change the risk.[2]

Screening

People with Barrett's esophagus (an abnormality of the cells lining the lower esophagus) are at much higher risk,[55] and may receive regular endoscopic screening for the early signs of cancer.[56] Because the benefit of screening for adenocarcinoma in people without symptoms is unclear,[1] it is not recommended in the United States.[2]

The Nath Score is a history-based risk assessment model developed using machine learning and retrospective data. It evaluates clinical history and symptom patterns to estimate the likelihood of esophageal cancer and has been proposed as a screening tool, particularly in settings where access to endoscopic screening is limited. While retrospective studies support its ability to identify high-risk individuals, it has not yet been adopted into standard screening guidelines.[57]

Management

File:EsoStentLatMarked.png
Esophageal stent for esophageal cancer
File:EsoStentEsoCaMark.png
Esophageal stent for esophageal cancer
File:Diagram showing before and after a total oesophagectomy CRUK 105.svg
Before and after a total esophagectomy
File:Diagram showing the possible scar lines after surgery for oesophageal cancer CRUK 364.svg
Typical scar lines after the two main methods of surgery

Treatment is best managed by a multidisciplinary team covering the various specialties involved.Script error: No such module "Unsubst".[58][59] Adequate nutrition must be assured, and appropriate dental care is essential. Factors that influence treatment decisions include the stage and cellular type of cancer (EAC, ESCC, and other types), along with the person's general condition and any other diseases that are present.[16]

In general, treatment with a curative intention is restricted to localized disease, without distant metastasis: in such cases a combined approach that includes surgery may be considered. Disease that is widespread, metastatic or recurrent is managed palliatively: in this case, chemotherapy may be used to lengthen survival, while treatments such as radiotherapy or stenting may be used to relieve symptoms and make it easier to swallow.[16]

Surgery

Script error: No such module "labelled list hatnote". If the cancer has been diagnosed while still in an early stage, surgical treatment with a curative intention may be possible. Some small tumors that only involve the mucosa or lining of the esophagus may be removed by endoscopic mucosal resection (EMR).[60][61] Otherwise, curative surgery of early-stage lesions may entail removal of all or part of the esophagus (esophagectomy), although this is a difficult operation with a relatively high risk of mortality or post-operative difficulties. The benefits of surgery are less clear in early-stage ESCC than EAC. There are a number of surgical options, and the best choices for particular situations remain the subject of research and discussion.[58][62][63]

The likely quality of life after treatment is a relevant factor when considering surgery.[64] Surgical outcomes are likely better in large centers where the procedures are frequently performed.[62] If the cancer has spread to other parts of the body, esophagectomy is nowadays not normally performed.[62][65]

Esophagectomy is the removal of a segment of the esophagus; as this shortens the length of the remaining esophagus, some other segment of the digestive tract is pulled up through the chest cavity and interposed. This is usually the stomach or part of the large intestine (colon) or jejunum. Reconnection of the stomach to a shortened esophagus is called an esophagogastric anastomosis.[62]

Esophagectomy can be performed using several methods. The choice of the surgical approach depends on the characteristics and location of the tumor, and the preference of the surgeon. Clear evidence from clinical trials for which approaches give the best outcomes in different circumstances is lacking.[62] A first decision, regarding the point of entry, is between a transhiatal and a transthoracic procedure. The more recent transhiatal approach avoids the need to open the chest; instead the surgeon enters the body through an incision in the lower abdomen and another in the neck. The lower part of the esophagus is freed from the surrounding tissues and cut away as necessary. The stomach is then pushed through the esophageal hiatus (the hole where the esophagus passes through the diaphragm) and is joined to the remaining upper part of the esophagus at the neck.[62]

The traditional transthoracic approach enters the body through the chest, and has a number of variations. The thoracoabdominal approach opens the abdominal and thoracic cavities together, the two-stage Ivor Lewis (also called Lewis–Tanner) approach involves an initial laparotomy and construction of a gastric tube, followed by a right thoracotomy to excise the tumor and create an esophagogastric anastomosis. The three-stage McKeown approach adds a third incision in the neck to complete the cervical anastomosis. Recent approaches by some surgeons use what is called extended esophagectomy, where more surrounding tissue, including lymph nodes, is removed en bloc.[62]

If the person cannot swallow at all, an esophageal stent may be inserted to keep the esophagus open; stents may also assist in occluding fistulas. A nasogastric tube may be necessary to continue feeding while treatment for the tumor is given, and some patients require a gastrostomy (feeding hole in the skin that gives direct access to the stomach). The latter two are especially important if the patient tends to aspirate food or saliva into the airways, predisposing for aspiration pneumonia.Script error: No such module "Unsubst".

Chemotherapy and radiotherapy

Chemotherapy depends on the tumor type, but tends to be cisplatin-based (or carboplatin or oxaliplatin) every three weeks with fluorouracil (5-FU) or capecitabine either continuously or every three weeks. In more studies, addition of epirubicin was better than other three drug regimens in advanced nonresectable cancer.[66] However, a meta-analysis in 2017 failed to demonstrate that anthracyclines such as epirubicin improved survival.[67] Therefore in metastatic cancer, a two drug combination is now standard. Most recently with the addition of immune checkpoint inhibitors such as nivolumab[68] or pembrolizumab[69] which prolongs disease-free survival after neoadjuvant chemoradiotherapy and surgery in patients with residual locally advanced esophageal squamous cell carcinoma, they are increasingly being incorporated into combined treatment strategies and are under investigation in both neoadjuvant and chemoradiation regimens.[70]

Chemotherapy may be given after surgery (adjuvant, i.e. to reduce risk of recurrence), before surgery (neoadjuvant) or if surgery is not possible. Cisplatin and fluorouracil were most commonly used a, however the REAL-2 trial confirmed that oxaliplatin and capecitabine were non-inferior and potentially more convenient.[71]

Radiotherapy is given before, during, or after chemotherapy or surgery, and sometimes on its own to control symptoms. In patients with localized disease but contraindications to surgery, "radical radiotherapy" may be used with curative intent.Template:Medcn

Other approaches

Forms of endoscopic therapy have been used for stage 0 and I disease: endoscopic mucosal resection (EMR)[72] and mucosal ablation using radiofrequency ablation, photodynamic therapy, Nd-YAG laser, or argon plasma coagulation.

Laser therapy is the use of high-intensity light to destroy tumor cells while affecting only the treated area. This is typically done if the cancer cannot be removed by surgery. The relief of a blockage can help with pain and difficulty swallowing. Photodynamic therapy, a type of laser therapy, involves the use of drugs that are absorbed by cancer cells; when exposed to a special light, the drugs become active and destroy the cancer cells.

Follow-up

Patients are followed closely after a treatment regimen has been completed. Frequently, other treatments are used to improve symptoms and maximize nutrition.

Prognosis

In general, the prognosis of esophageal cancer is quite poor, because most patients present with advanced disease. By the time the first symptoms (such as difficulty swallowing) appear, the disease has already progressed. The overall five-year survival rate (5YSR) in the United States is around 15%, and most people die within the first year of diagnosis.[73] The latest survival data for England and Wales (patients diagnosed during 2007) show that only one in ten people survives esophageal cancer for at least ten years.[74]

Individualized prognosis depends largely on stage. Those with cancer restricted entirely to the esophageal mucosa have about an 80% 5YSR, but submucosal involvement brings this down to less than 50%. Extension into the muscularis propria (muscle layer of the esophagus) suggests a 20% 5YSR, and extension to the structures adjacent to the esophagus predict a 7% 5YSR. Patients with distant metastases (who are not candidates for curative surgery) have a less than 3% 5YSR.[75]

Epidemiology

File:Oesophageal Cancer, Age-Standardized Rate (World) per 100.000 of Incidence Cases, Both sexes, Worldwide in 2022.svg
Incidence of esophageal cancer in both sex per 100.000 population (age-standardized rate) in 2022 <templatestyles src="Legend/styles.css" />
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  4.2–17.9
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Death from esophageal cancer per million persons in 2012 <templatestyles src="Div col/styles.css"/>
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Esophageal cancer is the eighth most frequently diagnosed cancer worldwide,[1] and because of its poor prognosis, it is the sixth most common cause of cancer-related deaths.[55] It caused about 400,000 deaths in 2012, accounting for about 5% of all cancer deaths (about 456,000 new cases were diagnosed, representing about 3% of all cancers).[1]

ESCC (esophageal squamous-cell carcinoma) comprises 60–70% of all cases of esophageal cancer worldwide, while EAC (esophageal adenocarcinoma) accounts for a further 20–30% (melanomas, leiomyosarcomas, carcinoids and lymphomas are less common types).[76] The incidence of the two main types of esophageal cancer varies greatly between different geographical areas.[77] In general, ESCC is more common in the developing world, and EAC is more common in the developed world.[1]

The worldwide incidence rate of ESCC in 2012 was 5.2 new cases per 100,000 person-years, with a male predominance (7.7 per 100,000 in men vs. 2.8 in women).[78] It was the common type in 90% of the countries studied.[78] ESCC is particularly frequent in the so-called "Asian esophageal cancer belt", an area that passes through northern China, southern Russia, north-eastern Iran, northern Afghanistan and eastern Turkey.[76] In 2012, about 80% of ESCC cases worldwide occurred in central and south-eastern Asia, and over half (53%) of all cases were in China.[78]Script error: No such module "Unsubst". The countries with the highest estimated national incidence rates were (in Asia) Mongolia and Turkmenistan and (in Africa) Malawi, Kenya and Uganda.[78] The problem of esophageal cancer has long been recognized in the eastern and southern parts of Sub-Saharan Africa, where ESCC appears to predominate.[79]

In Western countries, EAC has become the dominant form of the disease, following an increase in incidence over recent decades (in contrast to the incidence of ESCC, which has remained largely stable).[9][31] In 2012, the global incidence rate for EAC was 0.7 per 100,000 with a strong male predominance (1.1 per 100,000 in men vs. 0.3 in women). Areas with particularly high incidence rates include northern and western Europe, North America and Oceania. The countries with highest recorded rates were the UK, Netherlands, Ireland, Iceland and New Zealand.[78]

United States

In the United States, esophageal cancer is the seventh-leading cause of cancer-related deaths among males (making up 4% of the total).[80] The National Cancer Institute estimated that there were about 18,000 new cases and more than 15,000 deaths from esophageal cancer in 2013; the American Cancer Society estimated that during 2014, about 18,170 new esophageal cancer cases would be diagnosed, resulting in 15,450 deaths.[77][80]

The squamous-cell carcinoma type is more common among African American males with a history of heavy smoking or alcohol use. Until the 1970s, squamous-cell carcinoma accounted for the vast majority of esophageal cancers in the United States. In recent decades, incidence of adenocarcinoma of the esophagus (which is associated with Barrett's esophagus) steadily rose in the United States to the point that it has now surpassed squamous-cell carcinoma. In contrast to squamous-cell carcinoma, esophageal adenocarcinoma is more common in white American men (over the age of 60) than it is in African Americans. Multiple reports indicate esophageal adenocarcinoma incidence has increased during the past 20 years, especially in non-Hispanic white men. Esophageal adenocarcinoma age-adjusted incidence increased in New Mexico from 1973 to 2002. This increase was found in non-Hispanic whites and Hispanics and became predominant in non-Hispanic whites.[81] Esophageal cancer incidence and mortality rates for African Americans continue to be higher than the rate for Causasians. However, incidence and mortality of esophageal cancer has significantly decreased among African Americans since the early 1980s, whereas with whites it has continued to increase.[82] Between 1975 and 2004, incidence of the adenocarcinoma type increased among white American males by over 460% and among white American females by 335%.[77]

United Kingdom

The incidence of esophageal adenocarcinoma has risen considerably in the UK in recent decades.[16] Overall, esophageal cancer is the thirteenth most common cancer in the UK (around 8,300 people were diagnosed with the disease in 2011), and it is the sixth most common cause of cancer death (around 7,700 people died in 2012).[83]

Society and culture

Notable cases

Script error: No such module "Labelled list hatnote". Humphrey Bogart, actor, died of esophageal cancer in 1957, aged 57.

Billy Strayhorn, American jazz composer, pianist, lyricist, and arranger, who collaborated with bandleader and composer Duke Ellington, died of esophageal cancer in 1967 at age 51.

Actor John Thaw died of esophageal cancer in 2002, at the age of 60.

Christopher Hitchens, author and journalist, died of esophageal cancer in 2011, aged 62.[84]

Morrissey in October 2015 stated he has the disease and has described his experience when he first heard he had it.[85]

Mako Iwamatsu, voice actor for Avatar: The Last Airbender as General Iroh and Samurai Jack as Aku, died of esophageal cancer in 2006, aged 72.

Robert Kardashian, attorney and businessman, died of esophageal cancer in 2003, aged 59.

Traci Braxton, singer and reality TV star, died of esophageal cancer in 2022, aged 50.

Andrew Bonar Law resigned as Prime Minister of the United Kingdom in 1923 and died of throat cancer shortly after aged 65.

Ed Sullivan, host of the prominent self-titled television program The Ed Sullivan Show, died of esophageal cancer in 1974 at the age of 73.

Lynn Yamada Davis, chef YouTube star, died of esophageal cancer in 2024, aged 67.

Research directions

The risk of esophageal squamous-cell carcinoma may be reduced in people using aspirin or related NSAIDs,[86] but in the absence of randomized controlled trials the current evidence is inconclusive.[1][31]

The genomics of esophageal adenocarcinoma is being studied using cancer genome sequencing. Esophageal adenocarcinoma is characterized by complex tumor genomes [87][88] with heterogeneity within the tumor micro-environment.[88]

See also

References

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External links

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