Synovial sarcoma is characterized by the chromosomal translocation t(X;18)(p11.2;q11.2), resulting in the fusion of two genes: the SYT (or SS18) gene on chromosome 18 to either SSX1 or SSX2, or SSX3 on chromosome X. This fusion occurs independently of histological subtype, which can either be biphasic or monophasic [71]. Here, SS18 is linked to synovial sarcoma.