EWSR1 and Ewing sarcoma: In the biopsy specimen, a break-apart fluorescence in situ hybridisation (FISH) for EWSR1 and SS18 rearrangement was done which detected EWSR1 rearrangement (Figures 3 and 4) and hence the diagnosis was changed from synovial sarcoma to Ewing’s sarcoma/PNET.