All 10 biphasic synovial sarcoma cases had the SYT-SSX1 fusion, whereas 12 of 18 monophasic synovial sarcoma had the SYT-SSX1 and 6 had the SYT-SSX2 fusion gene (P < 0.05).     ///    "In 33 SYT-SSX positive synovial sarcomas, 22 had SYT-SSX1 and 6 had SYT-SSX2 fusion transcripts. "