[Cardiac Cavernous Hemangioma in the Right Atrium:Report of a Case].

Cardiac hemangioma is a rare benign tumor, and the cavernous type accounts for 50~60% of all cardiac hemangiomas. Although most cases are asymptomatic, the risk of serious complications, such as embolism, arrhythmia, tumor rupture, coronary artery obstruction, or sudden death, is high, and surgical resection should be considered. In a 60-year-old woman, follow-up imaging studies after a left breast cancer operation incidentally revealed a cardiac tumor in the right atrium. Transthoracic echocardiography showed a poorly mobile, highly echogenic 12×16 mm mass with clear margins, and contrast-enhanced computed tomography (CT) showed a round tumor with no obvious enhancement. The tumor was resected with an atrial wall and diagnosed as a cavernous hemangioma on histopathological examination. Cardiac hemangiomas are enhanced using contrast medium; however, some cases have no contrast enhancement. Histopathological examination confirmed this diagnosis. The patient was discharged on postoperative day 11 in a good condition.