Pulmonary atresia with intact atrial and ventricular septums, unroofed coronary sinus, and absent aortocoronary arterial connections.

A stillborn fetus with pulmonary valvar atresia and intact atrial and ventricular septums also had absence of coronary arterial connections from the aorta and an unroofed coronary sinus. A left superior caval vein drained to the dilated coronary sinus. The left coronary artery was anomalously connected to the proximal branch of the right pulmonary artery, and a fistula from the right ventricle supplied the right coronary artery.