title: Extragenital choriocarcinoma in the duodenum.
mesh_terms: D000328:Adult; D002822:Choriocarcinoma / Q000000981:diagnostic imaging* / Q000473:pathology; D004379:Duodenal Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D006801:Humans; D008297:Male; D011379:Prognosis; D011859:Radiography