About Video

This video clip shows transesophageal echocardiography. The arrowhead points to what appears to be a mass in or adjacent to LAA. Keeping the mass-like lesion in the middle of the monitor screen and rotating the transducer from 0° to 180° shows that the mass-like effect is produced by a lobe of the LAA. (AO: Aorta; LA: Left atrium; LAA: Left atrial appendage; LV: Left ventricle; M: Mass; MV: Mitral valve; PA: Pulmonary artery; PE: Fluid in the transverse sinus of pericardium). Source: Reproduced with permission from Giove GC, Singla I, Mishra J, Nanda NC. Transesophageal echocardiographic finding of left atrial appendage lobe mimicking a mass lesion. Echocardiography. 2011;28:684–5.