Internal capsule plaque and tonic spasms in multiple sclerosis

D. Maimone, A. T. Reder, F. Finocchiaro and E. Recupero
Department of Neurology, University of Chicago, Ill.

A patient developed hemilateral tonic spasms associated with a relapse of multiple sclerosis. An area of demyelination in the right internal capsule was observed on a magnetic resonance imaging scan. This lesion was not detectable on a second magnetic resonance imaging scan 10 months after the spasms had ceased. Paroxysmal symptoms in multiple sclerosis may represent transient phenomena related to inflammation in acute plaques.

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