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Successful resection of giant hemangiopericytoma originating from the left atrium

Department of Cardiovascular Surgery, Hyogo Brain and Heart Center at Himeji, 520 Saisho-ko, Himeji, 670-0981, Japan

*Corresponding author. Tel.: +81-792-93-3131; fax: +81-792-95-8199.

E-mail address: nozaki{at}hbhc.jp (N. Mukohara).

We report a case of a giant hemangiopericytoma in the left atrium showing severe dyspnea. Preoperative echocardiogram showed the giant tumor herniating into the left ventricle during cardiac diastole. Emergency surgery was performed due to failure of hemodynamics. The tumor was identified to originate from the posterior wall of the left atrium and was successfully excised with the left atrial wall. Histological investigations revealed existence of malignant hemangiopericytoma.

Key Words: Tumor; Left atrium