[Solid retroperitoneal tumors; case of multiple myxosarcoma].
D006801:Humans; D009236:Myxosarcoma; D009369:Neoplasms; D010537:Peritoneum; D012509:Sarcoma
PERITONEUM; SARCOMA, MYXOSARCOMA
Tumores sólidos retroperitoneales: un caso de mixosarcoma múltiple.