FOXO1 and FOXO3/FOXO4 fuse with PAX3/PAX7 and Mixed Lineage Leukemia (MLL) gene in Alveolar Rhabdomyosarcoma (ARMS) and AML, t(X;11), ALL, t(6;11), respectively [97,98,99,100,101,102,103]. The gene discussed is PAX3; the disease is alveolar rhabdomyosarcoma.