[Cerebellar hemorrhage and unilateral asterixis].

A hypertensive woman presented with asterixis ipsilateral to a cerebellar hemorrhage. Asterixis has not previously been described in association with a cerebellar lesion. The presence of asterixis in this patient may have been due to a reduction of afferent information through the loss of the dentato-thalamo-cortical input. Unilateral asterixis denotes a dysfunction of the mechanism underlying sustained muscular contraction and not a precise cerebral localisation.