A 67-year-old man was admitted to the cardiology department because of exertional dyspnea and orthopnea aggravated for 10 days. Transthoracic echocardiography showed dilated left ventricle (LV) with global hypokinesia with severely decreased systolic function (ejection fraction was estimated to be about 15%). Two oscillating masses with smooth, spherical contour were found in the LV apex (Fig. 1A). The size of masses were estimated 22 by 29 mm and 14 by 18 mm respectively. The patient received unfractionated heparin intravenously for 5 days, followed by oral warfarin therapy. On the 8th hospital day, follow-up echocardiography revealed partial resolution of thrombi with resultant highly movable friable remnants (Fig. 1B). One the 18th hospital day, follow-up echocardiography revealed nearly complete resolution of thrombi (Fig. 1C). The patient was discharged home uneventfully.