In this report, a case of a left ventricular (LV) pseudoaneurysm due to a previous myocardial infarction, which was repaired successfully, is described. A 62-year-old man, with a history of acute anterior wall myocardial infarction 6 months previously, was admitted with the complaints of acute dyspnea and palpitation. Echocardiography revealed an LV aneurysm, and ventriculography showed ventricular dysfunction and an LV pseudoaneurysm. Coronary angiography showed total occlusion of the proximal segment of the left anterior descending artery with a very thin lumen and insufficient retrograde filling. Under cardiopulmonary bypass and beating heart, the pseudoaneurysm was resected and the defect on the ventricular free wall was closed by the remodeling ventriculoplasty method of Dor. Histopathologic examination of the resected material confirmed the diagnosis of pseudoaneurysm. The postoperative course of our patient was uneventful. He was discharged on the ninth postoperative day.