Hairy Cell Leukemia Facts
This fact sheet provides information about hairy cell leukemia, including diagnosis, treatment, clinical trials and support resources. Hairy cell leukemia is a form of chronic lymphocytic leukemia (CLL).
Most individuals with HCL receive treatment at the time of diagnosis or at some point during the course of the disease. In a small percentage of cases, people do not require immediate treatment and may prefer to wait until signs and symptoms of the disease arise.