[Retroperitoneal ganglioneuroma. Report of a case].

Retroperitoneal ganglioneurom is a primitive, rare and benign tumor originating in the neural sheath. We report the case of a 27-years old man. An abdominal sonography had revealed accidentally a 60 mm, well demarcated tumor. The left renal vein was compressed an forced back. This tumor was located in front of and internal to the left kidney. The CT scan confirmed this tumor. A left subcostal laparotomy was done. The tumor was soft and movable. A total exeresis was performed. The pathology examination had conclude in a benign ganglioneuroma. The follow-up was six years and half. Retroperitoneal ganglioneuroma is a benign tumor with a good prognosis. The treatment is surgical.