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(a)Transthoracic echocardiogram in parasternal long-axis view illustrating a dilated coronary sinus; (b)Transthoracic echocardiogram in apical right ventricular inflow view illustrating a dilated coronary sinus. (Ao: aorta; CS: coronary sinus; LA: left atrium; LV: left ventricle; RA: right atrium; RV: right ventricle)
