[Retroperitoneal schwannoma].
D000368:Aged; D006801:Humans; D008297:Male; D009442:Neurilemmoma / Q000000981:diagnostic imaging / Q000473:pathology; D011859:Radiography; D012186:Retroperitoneal Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology
Schwannoma retroperitoneal.