[Retroperitoneal tumors].
D000328:Adult; D005260:Female; D006801:Humans; D008067:Lipoma / Q000601:surgery*; D008080:Liposarcoma / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D009442:Neurilemmoma / Q000601:surgery*; D012186:Retroperitoneal Neoplasms / Q000601:surgery*
Guzy pozaotrzewnowe.