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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 Chronic lymphocytic leukemia (CLL) is a type of cancer that affects the blood and bone marrow. In CLL, the bone marrow makes too many lymphocytes, which are a type of white blood cell. In patients with CLL, B cell lymphocytes can begin to colle ...
, including
Hairy cell leukemia Hairy cell leukemia is an uncommon hematological malignancy characterized by an accumulation of abnormal B lymphocytes. The incidence of hairy cell leukemia (HCL) is 0.28-0.30 cases per 100,000 people in Europe and the United States and the pre ...
* Myeloproliferative neoplasms including
polycythemia vera In oncology, polycythemia vera (PV) is an uncommon myeloproliferative neoplasm in which the bone marrow makes too many red blood cells. Approximately 98% of PV patients have a JAK2 gene mutation in their blood-forming cells (compared with 0.1-0 ...
, essential thrombocythemia, primary myelofibrosis, chronic neutrophilic leukemia , and chronic eosinophilic leukemia. {{Set index article Leukemia