Echinococcosis of the kidney.

A case of renal echinococcosis, most uncommon in Hungary, is reported. The problems of diagnosis and therapy are discussed. It is emphasized that difficulties of diagnosis, particularly differential diagnosis, arise mainly in countries where the incidence of echinococcosis is low. It is with the aid of the new diagnostic methods that an echinococcus cyst has been identified preoperatively in an occluded kidney which had been out of function for years.