A 76-year-old man was admitted complaining of sudden right lower limb pain. Echocardiography showed occlusion of the right femoral artery. He underwent thrombectomy and regained his lower limb circulation. Two days after the operation, the patient suffered cardiopulmonary arrest. He was resuscitated and immediately after the resuscitation, echocardiography revealed a left ventricular mass that almost fell into the left ventricular out-flow tract. Emergency surgery was performed to remove the mass. Pathological testing showed that the mass was a metastatic transitional carcinoma. Fourteen days after the open-heart surgery, the patient suddenly developed left lower limb pain. We performed an emergency thrombectomy so that limb perfusion could recover quickly. The pathological diagnosis was embolism from a tumor of the left ventricle. His postoperative progress was rapid and he died 23 days after the open-heart surgery.