Primary cardiac synovial sarcoma.

Synovial sarcoma is a rare entity and accounts for <1% in all primary cardiac tumors. This is typically a highly aggressive tumor and survival is usually less than nine months in this location, even with surgery and adjuvant chemoradiation. Primary cardiac synovial sarcoma has rarely been reported in the literature. We report a recent case from the Mayo Clinic, Rochester, Minnesota. The patient is still alive and with some recurrence of tumor but without significant symptoms 22 months after primary surgery.