Incidental Left Atrial Mass on Transesophageal Echocardiogram During Evaluation of Severe Mitral Regurgitation

摘要

class="kwd-title">Keywords: Severe mitral regurgitation, Left atrial mass, Cardiac sarcoma class="head no_bottom_margin" id="sec1title">IntroductionAn asymptomatic middle-age female was found to have a new prominent systolic murmur on routine physical exam. Transthoracic echocardiogram (TTE) revealed normal left ventricular systolic function and a thickened mitral valve (MV) with severe mitral regurgitation (MR). An echocardiogram performed following an episode of vasovagal syncope 8 years previously had shown a normal MV. Subsequent transesophageal echocardiogram (TEE) confirmed a thickened MV with severe regurgitation as well as a 1.2 × 1.2 cm mass attached to the left atrial (LA) free wall just above the orifice of the appendage. This case explores the etiology of the mass and its relationship to the abnormal MV.