Primitive neuroectodermal tumors of the abdominal wall and vulva in children: Report of two cases and review of the literature

Figure 4 Fluorescent in situ hybridization in Case 1. The 5'-terminus of the EWSR1 gene was labeled with red dye, and the 3'-terminus labeled with green dye. Results showed that the red and green signals were isolated from tumor cells, suggesting translocation of the EWSR1 gene (DAPI, 1000×).