Giant vegetation mimicking cardiac tumor in tricuspid valve endocarditis after catheter ablation.

A 33-year-old man suffered from fever of unknown origin and developed right-sided heart failure. A transeshophageal echocardiogram revealed an progressive enlarging mass in the right atrium mainly attached to the tricuspid valve and a previous ablation site, which mimicked a cardiogenic tumor. He was operated on to remove the mass and intraoperative pathology showed it was large vegetation and secondary granulation due to tricuspid endocarditis. Tricuspid valve replacement was performed combined with reconstruction of the right atrial wall.