The SYT-SSX1 and SYT-SSX2 fusion transcripts were detected in 29 (64 percent) and 16 (36 percent) of the tumors, respectively.     ///    "biphasic) and SSX1 or SSX2 involvement in the fusion transcript: all 12 biphasic synovial sarcomas had a SYT-SSX1 fusion transcript, and all 16 tumors that were positive for SYT-SSX2 were monophasic. "    ///    SYT-SSX1 and SYT-SSX2 are thought to tunction as aberrant transcriptional regulators.     ///    Kaplan-Meier analysis of 39 patients with localized tumors showed that the 15 patients with SYT-SSX2 had significantly better metastasis-free survival than the 24 patients with SYT-SSX1 (P=0.03 by multivariate analysis. 