Benedikt syndrome
Template:Infobox medical condition (new) Benedikt syndrome, also called Benedikt's syndrome or paramedian midbrain syndrome, is a rare type of posterior circulation stroke of the brain, with a range of neurological symptoms affecting the midbrain, cerebellum and other related structures.
Ipsilateral third nerve palsy presenting with ptosis,abduction of eye. Contralateral flapping tremor.
Causes
Benedikt syndrome is caused by a lesion (infarction, hemorrhage, tumor, or tuberculosis) in the tegmentum of the midbrain and cerebellum. Specifically, the median zone is impaired. It can result from occlusion of the posterior cerebral artery[1] or paramedian penetrating branches of the basilar artery.[2]
Diagnosis
- Oculomotor nerve palsy: eyeball gazing downward and outward position, diplopia, miosis, mydriasis, and loss of accommodation reflex.
- Contralateral loss of proprioception and vibration sensations.
- Cerebellar ataxia: involuntary movements.
Treatment
Deep brain stimulation may provide relief from some symptoms of Benedikt syndrome, particularly the tremors associated with the disorder.[3]
See also
References
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- ↑ AMA citation: Greenberg DA, Simon RP. Chapter 3. Disorders of Equilibrium. In: Greenberg DA, Simon RP, eds. Clinical Neurology. 7th ed. New York: McGraw-Hill; 2009. http://www.accessmedicine.com/content.aspx?aID=5146162. Accessed July 21, 2012
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External links
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