Primary Intrathoracic Biphasic Synovial Sarcoma

S ynovial sarcomas are most frequently observed in the extremities. A lthough synovial sarcomas are the third m ost common histological type of soft-tissue sarcomas of the extremities, p rimary mediastinal synovial sarcoma is e xtremely rare. Monophasic synovial sarcoma is the most commonly observed subtype. whereas the biphasic subtype is less common. We present our case which was diagnosed as biphasic synovial sarcoma located in the anterior mediastinum, which is considered to be a rare entity. The patient underwent surgical resection together with multimodal adjuvant radiotherapy and chemotherapy.