[Cloacal dysgenesis and vaginal delivery].

The failure of urorectal septum to form and divide the cloaca into rectum dorsally, and urogenital sinus ventrally, results in a cloacal dysgenesis. It is an extremely rare anatomic malformation of the genito-urinary tract and alimentary tract. A case of pregnancy and vaginal delivery in a patient with cloacal dysgenesis type II and previous heart operation is presented. Both mother and newborn were in good condition. The way of treatment of such patients is discussed.