Coronary Sinus Obstruction by Primary Cardiac Lymphoma as a Cause of Dyspnea Due to Significant Diastolic Dysfunction and Elevated Filling Pressures
A 52-year-old woman presented with severe dyspnea of 2 weeks’ duration. Echocardiography showed an enlarged left atrium but normal global left ventricular systolic function. However, a huge, irregularly shaped mass…