title: [Primary retroperitoneal tumors].
mesh_terms: D000328:Adult; D002763:Cholecystectomy; D002764:Cholecystitis / Q000150:complications / Q000601:surgery; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007813:Laparotomy; D008080:Liposarcoma / Q000175:diagnosis / Q000473:pathology / Q000601:surgery; D008599:Menstruation Disturbances / Q000209:etiology; D008875:Middle Aged; D010051:Ovarian Neoplasms / Q000175:diagnosis; D010173:Palpation; D012186:Retroperitoneal Neoplasms / Q000150:complications / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery
vernacular_title: Beitrag zu den primären retroperitonealen Tumoren