title: [Primary retroperitoneal neoplasms].
mesh_terms: D000230:Adenocarcinoma / Q000000981:diagnostic imaging; D000328:Adult; D000368:Aged; D003884:Dermoid Cyst / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009455:Neurofibroma / Q000000981:diagnostic imaging; D012186:Retroperitoneal Neoplasms / Q000000981:diagnostic imaging*; D012509:Sarcoma / Q000000981:diagnostic imaging; D014567:Urography
vernacular_title: Uber primäre retroperitoneale Geschwülste.