KMT2A and acute myeloid leukemia: Surprisingly, in our research, the fusion gene transcript resulting from t(10;11)(p12;q23) frequency (8.9%) was not only the highest in the case of all detected MLL rearrangements but also in relation to other common chromosomal translocation in AML, among others t(8;21)(q22;q22) (RUNX1-RUNX1T1)-−8.2% (16/195 patients).