About the Disease

Philadelphia chromosome negative myeloproliferative neoplasms (MPN) is a cancer associated with increased production of blood cells. MPN affects the circulatory system. Subtypes include polycythemia vera, essential thrombocythemia, myelofibrosis, chronic neutrophilic leukemia, chronic eosinophilic leukemia, and chronic myeloid leukemia BCR/ABL Negative.

Source: National Institutes of Health