An unusual case of aortico-right atrial tunnel is presented. The patient was referred to our institution for evaluation of a continuous heart murmur best heard along the right upper sternal border. Ascending aortography showed the tunnel taking its origin from the aortic root and entering the right atrium through a tortuous link. The patient underwent sugical repair because of a large left to right shunt. (Arch Turk Soc Cardiol 2003;31:298-302)
Keywords: Aortico-right atrial tunnel, congenital anomaly, large left-to-right shunt