Megarectum: a rare complication of imperforate anus repair and its surgical correction by endorectal pullthrough.

Nine patients ranging in age from 3 mo to 15 yr presented with severe constipation and/or increasing incontinence. All had a huge, dilated atonic rectum and rectosigmoid demonstrated by barium enema. Six patients underwent resection of the abnormal bowel by an endorectal pull-through procedure with good to excellent results while 1 patient was corrected by a Swenson procedure.