Chronic leukemia

Chronic leukemia is an increase of abnormal white blood cells. It differs from acute leukemia, and is categorized as myelogenous, lymphocytic or myeloproliferative.
Chronic leukemia may refer to:

Chronic myelogenous leukemia
Chronic lymphocytic leukemia, including Hairy cell leukemia
Myeloproliferative neoplasms including polycythemia vera, essential thrombocythemia, primary myelofibrosis, chronic neutrophilic leukemia , and chronic eosinophilic leukemia.