Clostridium difficile associated severe enterocolitis: a feature of Hirschsprung's disease in a neonate presenting late.

We report a case of Hirschsprung's disease presenting late in the newborn period with severe enterocolitis and Clostridium difficile toxin detectable in the stool. Enterocolitis associated with Hirschsprung's disease is a potentially fatal complication that may occur at presentation or later in the life of an affected child. Its association with toxin-producing Clostridium difficile growth in the bowel may be under recognized, especially in newborns.