Chorea gravidarum and chorea associated with oral contraceptives--diseases due to antiphospholipid antibodies?

A woman with chorea gravidarum in the absence of SLE is described. She later developed severe chorea while using the contraceptive pill, and high titered antiphospholipid antibodies were detected in serum. A rapid recovery after high dose i.v. methylprednisolone was observed. Deterioration occurred in a later pregnancy.