Echocardiography shows acute cor pulmonale.Hugely dilated right side of the heart. Dilated right ventricular dimension, with reverted Brenheimic effect and paradoxical septal motion. Normal left ventricular chamber internal dimensions with good systolic function. No regional resting wall motion abnormalities.RV, right ventricle; LV, left ventricle; RA, right atrium; LA, left atrium