Left Atrial Appendage Lipoma: An Unusual Location of Cardiac Lipomas (pages E91–E93)
Georges Khoueiry, Nidal Abi Rafeh, Alain Waked, Abir Abdo, Basem Azab, Kourosh T. Asgarian and S. Thomas Snyder
Version of Record online: 17 FEB 2011 | DOI: 10.1111/j.1540-8175.2010.01334.x
Cardiac lipomas are benign rare neoplasms of the heart. They are encapsulated and well defined subendocardial or subepicardial masses that can be seen at the atrial or ventricular level. Unlike cardiac thrombus and other tumors, lipomas have low tendency to develop peripheral emboli. Although transesophageal echocardiogram (TEE) is the procedure of choice to evaluate for atrial thrombus and masses, it might be difficult to conclude a diagnosis especially in the left atrial appendage. Cardiac imaging is essential to differentiate left atrial appendage lipomas (LAAL) from other tumors and thrombi to avoid unnecessary intervention. We report the first case of LAAL found incidentally by intraoperative TEE.