title: [Giant retroperitoneal tumor].
mesh_terms: D005260:Female; D006801:Humans; D008875:Middle Aged; D009217:Myosarcoma / Q000601:surgery*; D009362:Neoplasm Metastasis; D012186:Retroperitoneal Neoplasms / Q000601:surgery*
vernacular_title: Olbrzymi guz przestrzeni pozaotrzewnowej.