The pseudotransition zone in long segment Hirschsprung's disease.
Two cases of Hirschsprung's disease with psuedotransition zones are presented. The location and appearance of the transition zone, transverse contractions proximal to the radiographic transition zone, and a delayed film aid in distinguishing a false transition zone from a true transition zone.
D001706:Biopsy; D003125:Colostomy; D005260:Female; D006801:Humans; D007081:Ileostomy; D007223:Infant; D007231:Infant, Newborn; D007813:Laparotomy; D008531:Megacolon / Q000000981:diagnostic imaging* / Q000601:surgery; D011859:Radiography