[Homolateral ataxic hemiparesis].

20 cases with homolateral ataxic hemiparesis caused by stroke were reported in this article. The main clinical manifestations were: 1. Only mild motor weakness could be found, lower limb was more severe than upper arm for most of the patients; 2. There was a definite cerebellar ataxia which was out of proportion to the mild degree of weakness; 3. The incidence of facial palsy was more frequent than tongue palsy; 4. Most of these patients had heminumbness of the limb. According to the finding of CT, the localization was in the outside of the body of lateral ventricle for 8 cases; in the posterior limb of internal capsule and superior portion of it for 3 cases; in the ventral portion of pons for 1 case and superior portion of anterior limb of internal capsule for 1 case. The main cause of this disease was hypertensive arteriosclerosis, and the prognosis of these patients was benign.