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Hemichorea-hemiballism and lacunar infarction in the basal ganglia

From the Departments of Neurology (Drs. Kase and Mohr), Radiology (Dr. Maulsby), and Medicine (Dr. deJuan), University of South Alabama, Mobile, AL.

Address correspondence and reprint requests to Dr. Kase, Neurology Department, University of South Alabama, College of Medicine, 2451 Fillingim Street, Mobile, AL 36617.

We present a case of acute hemichorea-hemiballism associated with lacunar infarct documented by computerized tomography scan in the contralateral putamen and caudate nuclei. The pathoanatomic data of similar cases in the literature are reviewed with reference to the location of the responsible lesions. Acute hemichorea-hemiballism is most frequently caused by lacunar infarcts in the basal ganglia contralateral to the dyskinesia.

This work was supported by National Institutes of Health Grant No. 1-NS-8-2397.

Accepted for publication June 25, 1980.