“…This anomaly, similar to the more common aortico-left ventricular tunnel, is believed to be related to a congenital weakness in the region of the right sinus of Valsalva. Associated abnormal origin, or absence, of the right or left coronary ostium has been reported [5,6,8,10]. Hemodynamically, the anomaly produces a left-to-right shunt with resulting pressure and volume hypertrophy of the right ventricle.…”