title: Early-onset dystonia after supplementary motor area infarction.
abstract: A 63-year-old patient with the right supplementary motor area infarct developed early-onset dystonia in the left upper extremity. The mechanisms involved in the genesis of focal dystonia are discussed with emphasis on cortical basal ganglia circuit and efferent projections from the supplementary motor area.
authors.affiliation: Department of Cerebrovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan.
authors.forename: Kazutaka
authors.initials: K
authors.lastname: Nishimura
authors.affiliation: Department of Cerebrovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan. Electronic address: tuehara@ncvc.go.jp.
authors.forename: Toshiyuki
authors.initials: T
authors.lastname: Uehara
authors.affiliation: Department of Cerebrovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan.
authors.forename: Kazunori
authors.initials: K
authors.lastname: Toyoda
mesh_terms: D020520:Brain Infarction / Q000150:complications* / Q000175:diagnosis / Q000503:physiopathology; D038524:Diffusion Magnetic Resonance Imaging; D004421:Dystonia / Q000175:diagnosis / Q000209:etiology* / Q000503:physiopathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D009044:Motor Cortex / Q000503:physiopathology*; D013997:Time Factors; D034941:Upper Extremity / Q000294:innervation*
keywords: Movement disorders; acute onset; dystonia; infarction; supplementary motor cortex