ABCD syndrome revisited.

A four-day-old neonate presented with severe abdominal distention, intermittent bilious vomiting, typical black lock, partial albinism and heterochromatic iris. Ileostomy was done proximal to the transition zone at mid-ileal region (50 cms proximal to ileo-cecal region) All biopsy specimens till the transitional zone were negative for ganglion cells. Distinct features of total colonic aganglionosis and recto-sigmoid Hirschsprung's disease are delineated here.