How Common Is Hairy Cell Leukemia?
- Hairy cell leukemia is a rare type of leukemia in adults.
- Only 500 to 800 people in the United States are diagnosed with the disease each year.
- The average age at the disease's onset is 55.
Source: SEER (Surveillance, Epidemiology and End Results) Cancer Statistics Review, 1975-2007, National Cancer Institute, 2010.