[Intra-abdominal hemangiopericytoma: an unexpected finging during laparotomy].

Two cases of intraabdominal hemangiopericytoma are reported. 1. A 32-year-old patient underwent laparotomy because of a tumor arising from the greater omentum. Histological examination showed benign hemangiopericytoma. 2. In a 57-year-old women laparotomy revealed a tumor attached to the Omentum maius. Histological examination confirmed the diagnosis of malignant hemangiopericytoma. In spite of radical operation the patient died 9 months later. Until now only a few case reports exist about the occasional finding of hemangiopericytoma when gynecological disease was suspected. If the tumor is malignant prognosis does not seem to be improved by the additional radio- or chemotherapy.