FLT3 and acute myeloid leukemia: In terms of molecular factors, FLT3 mutations (for both OS and DFS), biallelic CEBPA mutations (for OS), NPM1-mut/DNMT3A-wt (for OS), as well as high MECOM (both for OS and DFS) and high MEIS1 (for OS) expressions were independent prognostic factors for AML (Table 4).