FISH analysis for CLL was performed using the following probes panel: TP53/CEP17, D13S319/13q34, IGH/CCND1 (DC,DF), IGH/BCL2 (DC,DF) whereas FISH analysis for AML was performed using the following probes panel: AML-ETO (DC,DF)/t(8;21)(q22;q22), PML-RARA (DC,DF)/t(15;17)(q22;q21), CBFB (DC,BAR)/inv(16)(p13;q22), MLL (DC,BAR)/11q23 and CEP8/D8Z2. The gene discussed is KMT2A; the disease is acute myeloid leukemia.