ASXL1, SETD2, JAK2, KRAS, PTPN11, NRAS, BRAF and CBL were found in AML and other myeloproliferative neoplasms such as myelodysplastic syndrome/myeloproliferative neoplasm (MDS/MPN) with varying frequency and prognostic impact [12–14]. The gene discussed is PTPN11; the disease is myelodysplastic syndrome.