FLI1 and Ewing sarcoma: Gene fusions confirming diagnosis were found in five patients: BCR-ABL1 (chronic myeloid leukemia), ASPSCR1-TFE3 (alveolar soft part sarcoma), EWSR1-FLI1 in two patients (Ewing sarcoma), and EWSR1-WTI (desmoplastic small round cell tumor).