[CASE OF RETROPERITONEAL MIXED TUMOR].
D008949:Adenoma, Pleomorphic; D006801:Humans; D008080:Liposarcoma; D012186:Retroperitoneal Neoplasms; D012187:Retroperitoneal Space
LIPOSARCOMA; RETROPERITONEAL NEOPLASMS
PERIPTOSIS OPISTHOPERITONAIKOU MIKTOU ONKOU.