The case of a 9-year-old boy with hemichorea due to cavernous hemangioma in the left caudate nucleus is presented. To our knowledge, only two children have been reported with hemichorea associated with cavernous hemangioma. Hemichorea in our patient responded to pimozide, a neuroleptic that blocks central nervous system dopaminergic receptors. (J Child Neurol 2001;16:685-688).
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