title: Post-streptococcal chorea in an adult with bilateral striatal encephalitis.
abstract: We present distinctive MRI findings in an adult female patient with possible Sydenham's chorea. T2-weighted MRI showed bilaterally symmetric, diffusely homogenous, and clearly demarcated hyperintensities selectively involving the entire striatum with swelling of the bilateral caudate heads. The MRI features may reflect the pathogenetic mechanisms of Sydenham's chorea associated with a specific autoimmune response to the basal ganglia.
authors.affiliation: Department of Neurology, Matsuyama Red Cross Hospital, 1 Bunkyou-cho, Matsuyama, Ehime 790-8524, Japan. hagiwara-kyu@umin.ac.jp
authors.forename: Koichi
authors.initials: K
authors.lastname: Hagiwara
authors.forename: Kayo
authors.initials: K
authors.lastname: Tominaga
authors.forename: Yoko
authors.initials: Y
authors.lastname: Okada
authors.forename: Miwako
authors.initials: M
authors.lastname: Kido
authors.forename: Ryo
authors.initials: R
authors.lastname: Yamasaki
authors.forename: Norihiko
authors.initials: N
authors.lastname: Shida
authors.forename: Yoriaki
authors.initials: Y
authors.lastname: Yamashita
mesh_terms: D000328:Adult; D002819:Chorea / Q000209:etiology* / Q000276:immunology / Q000473:pathology; D003342:Corpus Striatum / Q000276:immunology / Q000473:pathology*; D004660:Encephalitis / Q000150:complications* / Q000276:immunology; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D013290:Streptococcal Infections / Q000150:complications* / Q000276:immunology / Q000473:pathology