Synovial sarcoma of the soft palate: report of a case.

A case of primary synovial sarcoma of the soft palate is reported in a 19 year old man who was in good health and free of recurrence one year after operation. Radiation therapy was selected and a dose of 7600 rads was given. The presence of hyaluronic acid was investigated using the critical electrolyte concentration method. The tumor was considered histogenetically to be derived from undifferentiated mesenchymal tissue.