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Case Reports
Median nerve SEP after a high medullary lesion. Preserved N18 and absent P14 components. Case report.
- G M Manzano, R R Schultz, O G Barsottini, E Zukerman, and J A Nóbrega.
- Neurology and Neurosurgery Department, Escola Paulista de Medicina, UNIFESP, Brasil. Jnobreg@ibm.net
- Arq Neuropsiquiatr. 1999 Jun 1;57(2A):292-5.
AbstractMedian nerve SEPs recorded from a patient with a high medullary lesion are described. The lesion involved the anteromedial and anterolateral right upper third of the medulla, as documented by MRI. Forty one days after the lesion, left median nerve SEP showed preserved N18 and absent P14 and N20 components; stimulation of the right median nerve evoked normal responses. These findings agree with the proposition that low medullary levels are involved in the generation of the N18 component of the median nerve SEP.
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