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Chronic Myelogenous Leukemia |
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Chronic myelogenous leukemia is a disease in which the bone marrow makes too many white blood cells. Chronic myelogenous leukemia (also called CML or chronic granulocytic leukemia) is a slowly progressing blood and bone marrow disease that usually occurs during or after middle age, and rarely occurs in children. Normally, the body produces bone marrow stem cells (immature cells) that develop into mature blood cells. There are 3 types of mature blood cells: Red blood cells that carry oxygen and other materials to all tissues of the body. White blood cells that fight infection and disease. Platelets that help prevent bleeding by causing blood clots to form. In CML, the body tells too many bone marrow stem cells to develop into a type of white blood cell called granulocytes. Some of these bone marrow stem cells never become mature white blood cells. These are called blasts. Over time, the granulocytes and blasts crowd out the red blood cells and platelets in the bone marrow. |
