Unusual Mimicker of the Carotid Body Tumor: Synovial Sarcoma of the Carotid Space.

ABSTRACT

Synovial cell sarcomas are malignant tumors originating from pluripotent mesenchymal stem cells, unlike its name. It is a common tumor in the periarticular area, accounting for 8% of all soft tissue sarcomas. Head and neck are among the rarest areas of this tumor. Synovial sarcomas of the head and neck are more aggressive than those seen in other regions and are associated with remarkable mortality and morbidity. Treatment of synovial sarcomas of the head and neck is usually extensive local excision and additional radiation and/or chemotherapy may be performed.