The Third Surgical Intervention for a Case of Recurrent Undifferentiated Pleomorphic Sarcoma of the Left Atrium / 日本心臓血管外科学会雑誌

We report a rare case of primary cardiac undifferentiated pleomorphic sarcoma with invasion to the posterior mediastinum, for which partial resection of the tumor in the left atrium had already been carried out twice. After remission for about three years, recurrence in the atrial wall involving the mitral valve posterior leaflet required a third surgical resection following mitral valve replacement.