title: Intraluminal duodenal diverticulum associated with trisomy 21.
abstract: An intraluminal duodenal diverticulum is an uncommon congenital abnormality that may produce intermittent ostruction. The true pathogenesis of this lesion is still disputed, but it probably results from ballooning of a congenital web or diaphragm with prolonged peristalsis. An intraluminal "wind sock"-like structure filed with barium and surrounded by a radiolucent halo is the classic and diagnostic radiologic appearance. An association with trisomy 21 is made.
mesh_terms: D000293:Adolescent; D002904:Chromosomes, Human, 21-22 and Y; D004240:Diverticulum / Q000150:complications / Q000000981:diagnostic imaging*; D004314:Down Syndrome / Q000150:complications; D004378:Duodenal Diseases / Q000150:complications / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D011859:Radiography; D014314:Trisomy