Chronic Lymphocytic Leukemia -Leukemia and Lymphoma Society
Chronic lymphocytic leukemia (CLL) is one of four main
types of leukemia. About 15,110 new cases of CLL will be
diagnosed in 2008. About 90,179 people are living with CLL.
people are living with CLL than any other type of leukemia.
people with CLL are at least 50 years old.

CLL starts with a change to a single cell called a lymphocyte.
Over time, the CLL cells multiply and replace normal lymphocytes
in the marrow and lymph nodes. The high number of CLL cells in the
marrow may crowd out normal blood-forming cells, and CLL cells are
not able to fight infection like normal lymphocytes do.

Contact Us
The Leukemia & Lymphoma Society
1311 Mamaroneck Ave.
White Plains, NY 10605

or call the Information Resource Center at (800) 955-4572.
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