Diverticula and duplications (enterogenous cysts) of the stomach and duodenum.
D004240:Diverticulum / Q000175:diagnosis*; D013273:Diverticulum, Stomach / Q000175:diagnosis*; D004378:Duodenal Diseases / Q000175:diagnosis*; D004386:Duodenum / Q000002:abnormalities*; D006801:Humans; D011859:Radiography; D013270:Stomach / Q000002:abnormalities*