Rectal biopsy as an aid in the diagnosis of Hirschsprung's disease.
D001706:Biopsy; D013505:Digestive System Surgical Procedures; D006627:Hirschsprung Disease; D006801:Humans; D007422:Intestines; D008531:Megacolon / Q000175:diagnosis*; D012007:Rectum / Q000473:pathology*
BIOPSY; MEGACOLON/diagnosis; RECTUM/pathology