Multimodality Imaging of an Unusual Case of Right Ventricular Lipoma

A 57-year-old man presented with mild dyspnea and fatigue on exertion. He had a history of hypertension and type 2 diabetes mellitus. The results of the physical examination were normal, with the exception of a grade II ejection systolic murmur over the aortic area. ECG showed normal sinus rhythm. An echocardiogram was performed for evaluation of cardiac murmur.Transthoracic echocardiogram showed a bicuspid aortic valve, with mild aortic stenosis (peak gradient, 16 mm Hg), but no regurgitation. Cardiac function was normal. Incidentally, an echogenic mass measuring 4.0×2.5 cm was seen adherent to the right ventricular (RV) free wall and RV outflow tract (Figure 1 and Movie I in the online-only Data Supplement).Figure 1. Parasternal long-axis view of the echocardiogram shows an echogenic mass (straight arrow) adherent to the RV free wall and RV …