Malignant fibrous histiocytoma of the heart.

A case of cardiac sarcoma was reported. The tumor, which arose from the posterior wall of the left atrium, was demonstrated by echocardiography, contrast-enhanced computed tomography and direct observation during surgery. The tumor was successfully excised under emergency operation and was diagnosed as malignant fibrous histiocytoma after histologic examination. The patient had been free of symptoms for several months, but died of rapidly progressive congestive heart failure 6 months after surgery.