Diagnostic value of the preoperatively detected radiological transition zone in Hirschsprung’s disease

Background and objective The cardinal diagnostic sign of congenital aganglionic megacolon, or Hirschsprung’s disease (HD), is an aganglionic segment of the distal colon or rectum. To determine the surgical planning of a radiological transition zone (TZ) in HD, this study investigated the association between a radiological TZ and the bowel resection length.