Monophasic epithelial synovial sarcoma arising in the temporomandibular joint

ArticleinInternational Journal of Oral and Maxillofacial Surgery 36(8):762-5 · September 2007with13 Reads
Impact Factor: 1.57 · DOI: 10.1016/j.ijom.2007.02.014 · Source: PubMed


    Synovial sarcoma is a mesenchymal spindle-cell tumour that occurs infrequently in the head and neck. It originates from unknown stem cells differentiating into mesenchymal and/or epithelial structures. Most synovial sarcomas are biphasic in character, consisting of epithelial and spindle-cell elements. Here is reported a case of monophasic epithelial synovial sarcoma arising in the temporomandibular joint. The tumour was of a predominantly epithelial pattern, although a minute area of sarcomatous cells was found. The primary mode of treatment was wide en-bloc excision. Two years after surgery, the patient died of hepatocellular carcinoma, but there was no evidence of synovial sarcoma recurrence.