title: High-signal basal ganglia on T1-weighted images in a patient with Sydenham's chorea.
abstract: We report a 16-year-old girl with Sydenham's chorea. Choreiform movements involved both sides of her body. MRI 2 months after the onset revealed abnormal increased signal on T2-weighted images and enlargement of the caudate and putamen bilaterally. MRI 5 months later showed resolution of the swelling, but with increased signal on T1-weighted images in the putamen, globus pallidus and the head of the caudate nucleus bilaterally, with slightly increased signal intensity on T2-weighted images.
authors.affiliation: Department of Neurology, Yamaguchi University School of Medicine, Ube, Japan.
authors.forename: N
authors.initials: N
authors.lastname: Ikuta
authors.forename: M
authors.initials: M
authors.lastname: Hirata
authors.forename: F
authors.initials: F
authors.lastname: Sasabe
authors.forename: K
authors.initials: K
authors.lastname: Negoro
authors.forename: M
authors.initials: M
authors.lastname: Morimatsu
mesh_terms: D000293:Adolescent; D001479:Basal Ganglia / Q000000981:diagnostic imaging / Q000473:pathology*; D002421:Caudate Nucleus / Q000473:pathology; D002819:Chorea / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000473:pathology*; D005260:Female; D005917:Globus Pallidus / Q000473:pathology; D006801:Humans; D008279:Magnetic Resonance Imaging; D011699:Putamen / Q000473:pathology; D015899:Tomography, Emission-Computed, Single-Photon