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Lesions of the putamen and dystonia

CT and magnetic resonance imaging

From the Division of Neurology, Department of Medicine (Drs. Burton and Calne) and the Department of Radiology (Dr. Li), Health Sciences Centre Hospital, University of British Columbia, and Children's Hospital (Dr. Farrell), Vancouver, BC, Canada.

We studied posthemiplegic hemidystonia in an adult, and generalized dystonia in two children. CT and magnetic resonance imaging (MRI) studies in the adult revealed infarction of the contralateral putamen and, to a much lesser extent, the head of the caudate nucleus. Both children had subacute encephalopathies (possible Leigh's disease), and CT revealed bilateral putamen lesions when generalized dystonia was the predominant clinical disorder. These cases and other reports of symptomatic dystonia suggest that lesions of the putamen correlate with dystonia.

Address correspondence and reprint requests to Dr. Calne, Division of Neurology, Room S129, Acute Care Unit, UBC Health Sciences Centre Hospital, 2211 Wesbrook Mall, Vancouver, BC, Canada V6T 1W5.

Supported by the Dystonia Medical Research Foundation, the Medical Research Council, and the Parkinson Foundation of Canada.

Accepted for publication March 8, 1984.

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