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Home > Cancer and Treatments > Blood, Lymphatic & Bone Marrow Cancers > Leukemia Leukemia: Chronic Lymphocytic (CLL)DefinitionChronic lymphocytic leukemia (CLL) is a cancer in the bone marrow. CLL produces too many lymphocytes (white blood cells). White blood cells defend the body against infection. In untreated leukemia, the white blood cell count is abnormally high.Ninety percent of people who develop CLL are over age 50. It is more common in men than women. Getting Diagnosed / TreatmentCLL is treated at the U-M Cancer Center in the Adult Hematology Clinic. Read more about:
How does CLL occur?Blood cells grow in the bone marrow and are supposed to be fully-grown when they enter the bloodstream. 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. In CLL, too many immature cells develop into a type of white blood cell called lymphocytes. The lymphocytes in CLL are not able to fight infection very well. Also, as the CLL cells increase in the blood and bone marrow, there is less room for healthy white blood cells, red blood cells, and platelets. This may result in infection, anemia, and easy bleeding. The exact cause of chronic lymphocytic leukemia is unknown. What are the symptoms?Chronic lymphocytic leukemia often has few symptoms. In some people, the first signs of the disease are:
How is it diagnosed?It is sometimes discovered when a blood test is done for some other reason and an abnormally high lymphocyte count is found.People may complain of tiredness, may have swollen lymph nodes, or may have more frequent infections. How is it treated?In the early stage of the disease you may not need treatment. Treatment is required when your lymph nodes, spleen, or liver is greatly enlarged or when the disease gets worse. Your health care provider will want to check you regularly. You may need to see a cancer specialist (oncologist).When you need treatment, your provider may prescribe radiation therapy, chemotherapy, or other kinds of medicines.
If these treatments do not work well, a bone marrow transplant may be done. A bone marrow transplant injects the person with CLL with healthy marrow cells from a donor. How long will the effects last?The disease becomes worse over many years. Survival varies from 1 to 20 years, depending on the stage of disease when it is diagnosed and the growth rate of the malignant cells. Many people with CLL live normal lives for many years.How can I take care of myself?Check with your health care provider before taking other medicines, including nonprescription products or other forms of treatment.Continue to eat a balanced diet and get regular exercise. If you have a sore throat or fever, call your health care provider for advice. You may need immediate treatment. It is important to have regular checkups and to follow your health care provider's advice about how to take care of yourself. If several family members have had the disease, there is an increased risk of siblings, especially brothers, to have the disease. If you are at increased risk, you should have regular checkups. Updated 12/2005
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University of Michigan Comprehensive Cancer Center This site is part of the U-M Health System. The information presented is not a tool for self diagnosis or a substitute for professional care. © 2008 U-M Comprehensive Cancer Center |
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