[Massive retroperitoneal haemorrhage in the Bourneville-Pringle syndrome (author's transl)].

Case-report of a 54 year-old patient who was admitted with the clinical picture of an acute abdomen on the basis of intraabdominal haemorrhage. X-ray investigation discounted the diagnosis of ruptured aortic aneurysm, the CAT scan showed a suspected acute haemorrhagic necrotising pancreatitis. At laparotomy, a fatty, bleeding kidney tumour was found growing into the retroperitoneal tissue. The histological frozen-section showed a leimyo liposarcoma of the kidney. Bourneville-Pringle's disease was only afterwards known to be the basic illness of the patient, as was verified at postmortem examination. From the knowledge of these new facts, both the CAT-scan and the intra-operative and histological findings could be correctly interpreted.