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  • Title: High-signal basal ganglia on T1-weighted images in a patient with Sydenham's chorea.
    Author: Ikuta N, Hirata M, Sasabe F, Negoro K, Morimatsu M.
    Journal: Neuroradiology; 1998 Oct; 40(10):659-61. PubMed ID: 9833896.
    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.
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