Types of leukemia

There are four main types of leukemia. They are grouped according to how quickly the disease progresses and which white blood cells are affected.

Acute leukemia progresses rapidly. Chronic leukemia progresses more slowly. There may be an increased number of the white cells that play an important part in the immune system (lymphocytes) or an increased number of the white cells that normally help the body fight infection (myelocytes). These cells are abnormal and do not work properly. The four main types of leukemia are:

Last Updated: November 26, 2008

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