title: [Primary retroperitoneal tumors (clinical findings in yolk sac tumor, vascular leiomyosarcoma and extraosseous chondrosarcoma)].
abstract: Primary retroperitoneal tumors (PRT) constitute about 0.02 per cent of all tumors examined in the Department of Pathology of our hospital. We report 3 cases of malignant PRT - yolk-sac tumour, vascular leiomyosarcoma and extraskeletal chondrosarcoma - selected for their histological rarity and clinical features. Recent techniques available for the diagnosis of these neoplasms and surgical treatment are discussed. The role of radio-chemotherapy is also dealt with.
mesh_terms: D000328:Adult; D000368:Aged; D002813:Chondrosarcoma / Q000473:pathology / Q000601:surgery*; D005260:Female; D006801:Humans; D007890:Leiomyosarcoma / Q000473:pathology / Q000601:surgery*; D008297:Male; D008649:Mesonephroma / Q000473:pathology / Q000601:surgery*; D008875:Middle Aged; D012186:Retroperitoneal Neoplasms / Q000473:pathology / Q000601:surgery*
vernacular_title: Tumori retroperitoneali primitivi (rilievi clinici sul tumore del sacco vitellino ("yolk-sac tumour"), leiomiosarcoma vascolare e condrosarcoma extrascheletrico).