Retroperitoneal tumor of the pelvis; report of a case.
D005354:Fibrosarcoma; D006801:Humans; D008499:Medical Records; D009369:Neoplasms; D010388:Pelvis; D012186:Retroperitoneal Neoplasms; D012187:Retroperitoneal Space
FIBROSARCOMA/case reports; RETROPERITONEAL SPACE/neoplasms