Case 2: Echocardiogram revealed pericardial tamponade. Echocardiography from the parasternal short-axis view showed mild to moderate (8-18 mm) pericardial effusion with RV collapse (white arrow).Abbreviations: Ao, aorta; LA, left atrium; PA, pulmonary artery; PE, pericardial effusion; RA, right atrium; RV, right ventricle.