Duplication cyst of the duodenum.
D002758:Cholangiography; D003560:Cysts / Q000473:pathology* / Q000601:surgery*; D004064:Digestive System / Q000000981:diagnostic imaging; D004378:Duodenal Diseases / Q000473:pathology* / Q000601:surgery*; D005260:Female; D006801:Humans; D007413:Intestinal Mucosa / Q000473:pathology; D008875:Middle Aged