[Primary Pulmonary Synovial Sarcoma Confirmed by Demonstration of SYT-SSX Fusion Gene Translocation by Fluorescence In Situ Hybridization].

A 58-year-old man was referred to our hospital due to a mass shadow noted on a chest X-ray. Chest computed tomography showed a 3 cm nodule in the left lung. Thoracoscopic left upper lobectomy was performed to remove the lesion, and the postoperative diagnosis was primary pulmonary synovial sarcoma according to the histology and SYT-SSX gene analysis.