[Parathyroid carcinoma (author's transl)].

Carcinoma of the parathyroid glands is a rare disease which occurs only in 0.5 to 4 percent as the cause of a primary hyperparathyroidism. One third of the tumors are hormonally inactive. A review of the diagnosis, course and possibilities of treatment of this disease is given with reference to the literature. Observations of 2 cases show the special problems of diagnosis and simple possibilities for the satisfactory treatment of small tumors. Followup examinations of both patients after a year showed no evidence of a relapse.