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Persistent Hemichorea in a 65-Year-Old Man. What’s Your Diagnosis?

A new clinical image from The New England Journal of Medicine presents a 65-year-old man with a 10-year history of involuntary movements of his left hand. “Neurologic examinations showed hemichorea in his left arm that disappeared during sleep. Computed tomography of the brain revealed a calcified lesion in the right putamen (Panel A). T2-weighted magnetic resonance imaging of the brain showed mixed signal intensity, with a central core and a peripheral rim of decreased intensity in the right putamen (Panels B and C) that suggested cavernous angioma.”

View the clinical image and video in NEJM.