Synovial sarcoma of the heart.

Primary synovial sarcomas of the heart are exceptionally rare tumours, only five being previously documented. We report a sixth case and review published data. Ages ranged from 13-53 (mean 40.8) years. There were four men and two women who characteristically presented with syncope or dyspnoea. Most of the tumours arose in the right atrium where they formed pedunculated or polypoid masses. In the previously documented cases, all patients died within 9 months. However in our case, local excision was felt to have been complete and the patient remains disease free at 10 months.