[An emergent operation for metastatic cardiac tumor of malignant cystosarcoma phyllodes]

A 47-year-old woman was transferred to our hospital under endotracheal intubation with severe hemodynamic deterioration. A left mastectomy had been performed 8 months earlier and histology of the specimen showed malignant cystosarcoma phyllodes. An angiography and echocardiography suggested massive mass of the right ventricle extending to the pulmonary artery. An emergent life-saving operation was required using cardiopulmonary bypass. A huge multilobular tumor was resected from the right ventricle through the pulmonary artery as much as possible and a tricuspid valvuloplasty was also performed. The patient was weaned from cardiopulmonary bypass, then satisfactorily recovered from hemodynamic disturbances. Nevertheless, she died 15 days later due to multiple organ failure. Microscopic examination of resected specimen showed the neoplastic stromal cells that increase mitotic activity and have sarcomatous characteristics, consistent with a metastatic cystosarcoma phyllodes. This is a second case of operation for cardiac metastasis of cystosarcoma phyllodes using cardiopulmonary bypass, so far presented in the literature of the world reviewed by the authors.