Moyamoya disease precipitating Sydenham's chorea

Design: Case report: Patient: A 19-year old Caucasian female presenting with rapid onset of choreiform movements restricted to the left side of her body involving upper and lower extremity, accompanied by mild neuropsychiatric symptoms of increased emotional lability and distractibility. Main outcome and Results: The choreiform movements predominantly affected the distal parts of the patient's left arm and leg along with mild abnormal movements of the neck. The dyskinesia decreased at rest and increased during voluntary actions. Taking into account the clinical picture and a recent history of untreated upper res…