The umbilical cord, a structure vital to growth and well-being of the fetus, is 50-60 cm long at term gestation and three blood vessels course through Wharton’s jelly in a helical fashion. Single umbilical artery is associated with multiple organ malformations, placental insufficiency and intrauterin fetal growth retardation. In this study we analyzed six cases and reviewed the present literature.
Keywords: single umbilical artery, anomaly, umbilical cord