Compression of the duodenum by the root of the mesentery.
D000328:Adult; D003937:Diagnosis, Differential; D004380:Duodenal Obstruction / Q000000981:diagnostic imaging*; D004386:Duodenum / Q000601:surgery; D006801:Humans; D007583:Jejunum / Q000601:surgery; D008297:Male; D011859:Radiography; D013478:Superior Mesenteric Artery Syndrome / Q000000981:diagnostic imaging* / Q000601:surgery