Beak sign in duodenal duplication cyst.
Duodenal duplication cyst is an uncommon congenital anomaly of the alimentary tract and preoperative diagnosis is important in relation to the surgical approach. This paper describes a beak-like projection of the duodenum in contrast studies which enabled a confident preoperative diagnosis of duodenal duplication cyst in four infants.
D003560:Cysts / Q000000981:diagnostic imaging*; D004380:Duodenal Obstruction / Q000000981:diagnostic imaging*; D004386:Duodenum / Q000002:abnormalities* / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D011859:Radiography