Abstract
Synovial sarcoma is generally a malignant tumor originating in soft tissue which usually occurs in the extremities. However, synovial sarcoma occurring in the head and neck is very rare. A 21-year-old woman, complaining of swelling and slight pain in the right neck region, visited our hospital. Both a tumor resection and a right radical neck dissection were performed under general anesthesia. Microscopically, the tumor consisted of spindle cell synovial sarcoma. At 30 month after the operation, the patient is still alive, however, lung metastasis has been indentified.