Malrotation of the midgut.
D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases; D007415:Intestinal Obstruction / Q000151:congenital*; D007422:Intestines / Q000002:abnormalities*; D008297:Male