Spontaneous rupture of the kidney.

Two cases of spontaneous rupture of the kidney manifesting as acute abdomen are described. In both cases urgent transabdominal nephrectomy was carried out. The whole distal half of the kidney was tumorous and rupture, with extensive perirenal and retroperitoneal haemorrhage. Histological findings showed in the first instance renal liposarcoma, in the second instance an atypical lipoma of the kidney. The first patient survives 4 years, the second one year, after the operation both are in a good condition.