Paroxysmal Ataxia and Dysarthria with a Single Lesion in the Cerebellar Peduncle

Abstract

Paroxysmal neurological disturbances lasting only seconds are well known in multiple sclerosis (MS) [4, 6]. The main types which have been reported are trigeminal neuralgia, pain attacks of the limbs, tonic seizures, paroxysmal paresthesia (e.g., sign of Lhermitte), ataxia, and dysarthria. The incidence of most paroxysmal symptoms in MS ranges from 3%–5% [2] up to an incidence of 17% for tonic seizures in MS observed in Japan [9].