SSI8-SSX2 fusion transcript in the diagnosis of a poorly differentiated synovial sarcoma

We present a case of a 16-year-old female with a poorly differentiated synovial sarcoma, where the diagnosis was established by molecular diagnostic techniques, including reverse transcriptase polymerase chain reaction (RT-PCR) for detecting the SS18-SSX2 fusion transcript, and fluorescence in situ hybridization (FISH) for demonstrating the absence of EWSR1 gene rearrangement.