[Tomographic diagnosis of retroperitoneal tumors].
D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D008722:Methods; D008875:Middle Aged; D011859:Radiography; D012186:Retroperitoneal Neoplasms / Q000000981:diagnostic imaging*; D012188:Retropneumoperitoneum; D014054:Tomography