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Neuropsychiatr Dis Treat. 2014 Apr 5;10:563-5. doi: 10.2147/NDT.S60694. eCollection 2014.

Chorea disclosing a polycythemia vera.

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Department of Neurology, Huadong Hospital, Fudan University, Shanghai, People's Republic of China.


Chorea is a rare complication of polycythemia. We report the case of a 70 year-old woman whose polycythemia vera (PV), with Janus Kinase-2 (JAK2) mutation, presented as chorea. Chorea resolved quickly after hydroxyurea therapy.


JAK2; chorea; elderly; polycythemia vera

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