Radiological case of the month.
D000328:Adult; D000368:Aged; D004386:Duodenum / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D007410:Intestinal Diseases / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D011859:Radiography; D014456:Ulcer / Q000000981:diagnostic imaging*