Umbilical cord allantoic cysts in a newborn with vacterl association.

Allantoic cysts of umbilical cord are very rare. A preterm, low birth weight, male newborn with a new constellation of anomalies, allantoic duct cysts in the umbilical cord and associated perinatally lethal malformations of VACTERL sequence, is reported. In addition, the neonate also had duodenal atresia, patent urachus, obstructive uropathy and bifid scrotum. Association of Allantoic cysts with VACTERL sequence has not been described earlier.