[A case of tertiary hyperparathyroidism following kidney transplantation complicated by lithiasis].

For the first time in Bulgaria the authors present a case of tertiary (autonomous) hyperparathyroidism, persisting in a patient who had successful kidney transplantation. Subtotal parathyroidectomy six months after the transplantation led to complete cure. Associated with the underlying disease, a rare complication was also observed in the patient--calculosis in the grafted kidney, spontaneously eliminated 40 days after the parathyroidectomy.