CSF3R mutations are also found in atypical chronic myeloid leukemia [33] (referred to as myelodysplastic/myeloproliferative neoplasms with neutrophilia in the fifth edition of WHO), chronic myelomonocytic leukemia (with CMML conferring poor prognosis) [34], hereditary neutrophilia (T640N, also known as T617N), acute myeloid leukemias, and myelodysplastic syndromes. The gene discussed is CSF3R; the disease is myelodysplastic syndrome.