NCIt definition : A group of myeloid neoplasms that includes the following: chronic myeloid leukemia,
BCR-ABL1 positive; polycythemia vera; essential thrombocythemia; primary myelofibrosis;
chronic neutrophilic leukemia; chronic eosinophilic leukemia, not otherwise specified;
and myeloproliferative neoplasm, unclassifiable.;
Alternative definition : NCI-GLOSS: A group of slow growing blood cancers, including chronic myelogenous leukemia,
in which large numbers of abnormal red blood cells, white blood cells, or platelets
grow and spread in the bone marrow and the peripheral blood.;