Duplication of the duodenum.
D002648:Child; D003560:Cysts / Q000175:diagnosis; D003937:Diagnosis, Differential; D004378:Duodenal Diseases / Q000175:diagnosis; D004386:Duodenum / Q000002:abnormalities* / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D007813:Laparotomy; D011859:Radiography