title: Case report: hemiballismus with unusual MRI findings.
abstract: A 90-year-old male experienced the abrupt onset of hemiballismus. He had an unusual MRI picture with bright signal in the right basal ganglia on T1-weighted imaging with no significant signal abnormality identified on T2-weighted imaging. This appearance has been described in diabetic patients who sustain ischemia in the basal ganglia region and prior cases are cited.
authors.forename: T
authors.initials: T
authors.lastname: Free
authors.forename: A
authors.initials: A
authors.lastname: VanderPol
authors.forename: J W
authors.initials: JW
authors.lastname: Freeman
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001479:Basal Ganglia / Q000473:pathology; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D009069:Movement Disorders / Q000175:diagnosis*