Leiomyosarcoma in retroperitoneal fat:  an extraordinary entity.
D000005:Abdomen; D000008:Abdominal Neoplasms; D006801:Humans; D050152:Intra-Abdominal Fat; D007890:Leiomyosarcoma; D009369:Neoplasms
ABDOMEN/neoplasms; LEIOMYOSARCOMA