Thyrotoxic hypokalemic periodic paralysis in a white man.

Thyrotoxic periodic paralysis is an uncommon complication of hyperthyroidism. Hypokalemia, with associated flaccid paralysis, is the hallmark. Oriental men are most commonly affected. We have reported a case of TPP induced by Graves' disease in a white man with hypokalemia and hypophosphatemia. He was successfully treated with radioactive ablation and short-term administration of a beta blocker. The patient has remained asymptomatic for 12 months after treatment.