title: Retroperitoneal fibrosarcoma.
abstract: A case of retroperitoneal fibrosarcoma is reported. Clinical and pathological signs of the lesion and its treatment are emphasized.
mesh_terms: D000328:Adult; D005354:Fibrosarcoma / Q000175:diagnosis* / Q000473:pathology; D006801:Humans; D008297:Male; D012186:Retroperitoneal Neoplasms / Q000175:diagnosis* / Q000473:pathology