Continuous precordial murmur due to congenital fistula between the femoral artery and the superior vena cava.

An unusual case of arteriovenous communication between the left inferior epigastric artery, a branch of the femoral artery, and the superior vena cava is presented. The communication caused a continuous murmur at the lower parasternal area and was responsible for a significant left-to-right shunt. Surgical treatment, which consisted of ligation of the aberrant artery at its origin, was followed by disappearance of the precordial murmur.