title: [Retroperitoneal tumors].
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D003560:Cysts / Q000601:surgery; D005260:Female; D005350:Fibroma / Q000601:surgery; D005354:Fibrosarcoma / Q000601:surgery; D006801:Humans; D007889:Leiomyoma / Q000601:surgery; D016403:Lymphoma, Large B-Cell, Diffuse / Q000601:surgery; D008228:Lymphoma, Non-Hodgkin / Q000601:surgery; D008297:Male; D008654:Mesothelioma / Q000601:surgery; D008875:Middle Aged; D009217:Myosarcoma / Q000601:surgery; D009455:Neurofibroma / Q000601:surgery; D010673:Pheochromocytoma / Q000601:surgery; D012186:Retroperitoneal Neoplasms / Q000145:classification / Q000601:surgery; D012509:Sarcoma / Q000601:surgery; D012737:Sex Factors; D013724:Teratoma / Q000601:surgery
vernacular_title: Guzy pozaotrzewnowe.