[Two cases of retroperitoneal malignant fibrous histiocytoma]

The clinical and morphological pictures of retroperitoneal malignant fibrous histiocytoma in a woman of 53 and a man of 31 are described. The female patient was observed for 7 years and 3 times underwent surgical removal of multiple tumor nodes from the abdominal cavity. The man had a wide spread of tumor into the organs of the abdominal cavity with a rapid death.