Chorea is a rare manifestation of neuropsychiatric systemic lupus erythematosus, and is
probably caused by immune-mediated hypofunction of the contralateral striatum.
Conventional imaging with brain computed tomography or magnetic resonance imaging
often fails to show any structural lesions. We report a case of systemic lupus erythematosus-
associated chorea in which brain F-18 flourodeoxyglucose positron emission tomography
imaging showed disturbances in striatal metabolism in the absence of structural damage on …