EWSR1 and childhood malignant neoplasm: Our approach has also identified other fusions commonly associated with pediatric cancer, including EWSR1-FLI1 (n = 9), FGFR1-TACC1 (n = 3), PAX3-FOXO1 (n = 3), ZFTA-RELA (n = 2), COL3A1-PLAG1 (n = 2), and NPM1-ALK (n = 2) (Fig. 2B).