[Megacystis microcolon intestinal hypoperistalsis syndrome: A neuropathy?].

2 cases of megacystis microcolon intestinal hypoperistalsis are presented. A female newborn was capable of being fed completely enterally after three months. Laparotomy was not performed. A male newborn was subjected to laparotomy after 3 days and an ileal stoma was applied. The infant died after 6 months of complete parenteral feeding without any peristalsis having been initiated. Biopsies of the colon and small intestine of the patient showed normal HE staining findings. Histochemical examination revealed type B neuronal dysplasia with neuronal hypogenesis. The findings of 27 cases described in the literature are discussed with special reference to the histological findings of the intestinal wall.