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Transthoracic echocardiograms. Apical 3-chamber (A, B) and 4-chamber (C, D) views showing a 8.4 × 6.8 × 4.3-cm size mass communicating to LA and the presence of mild mitral regurgitation. AAO = ascending aorta, LA = left atrium, LAA = left atrial appendage, LV = left ventricle, RA = right atrium, RV = right ventricle.
