NGS studies will be done in stem cell leukemic population. The analysis of the samples to the diagnosis will be carried out using the 26 consensus genes: ASXL1 had, CBL, CEBPA, DNMT3A, EZH2, FLT3, GATA2, IDH1, IDH2, JAK2, KIT, KRAS, MPL, MLL, NPM1, NRAS, PTPN11, RUNX1, SETBP1, SF3B1, SRSF2, TET2, TP53, U2AF1, WT1. Regarding the 26 genes panel, it would have the advantage that the quantification of DNA from each sample will be carried out by fluorimetry using the AmpliSeq or TruSeq on Ion platforms torrent Proton or MySeq are handled in different laboratories.