Abstract
Sinovial sarcoma, springing from mesenchyme rather than mature synovial tissues, is one of the soft malignant tumors which frequently breaks out to the limbs of a young man. Between 3% and 10% of all synovial sarcomas originate in the head and neck. It is thought that head and neck synovial sarcoma has a better prognosis than tumors of the extremities. We report a case of sinovial sarcoma of 16-year-old girl. The mass was completely excised. Postoperatively, the patient received chemotherapy. This case showed a biphasic cellular pattern verified by immunohistochemical staining. At 40 months of follow-up, the patient remains disease-free.
