Figure legends
Figure1 Panel A: Transthoracic echocardiography shows abnormal blood flow into the right atrium. Panels B-D: Multidetector computed tomography(MDCT) shows 1) an abnormally dilated vessel originating from the right coronary sinus of Valsalva, which develops into an aneurysm and eventually flows into the right atrium.2) an abnormal origin of the left circumflex artery from the right coronary sinus. 3) a right coronary artery with normal origin and diameter.