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Chronic Myeloproliferative Neoplasms Treatment (PDQ®)

Patient Version
Last Modified: 06/17/2014

Chronic Neutrophilic Leukemia

Chronic neutrophilic leukemia is a disease in which too many blood stem cells become a type of white blood cell called neutrophils. Neutrophils are infection -fighting blood cells that surround and destroy dead cells and foreign substances (such as bacteria). The spleen and liver may swell because of the extra neutrophils. Chronic neutrophilic leukemia may stay the same or it may progress quickly to acute leukemia.