Learn about the three most important lines of latitude on Earth - the equator, Tropic of Cancer, and Tropic of Capricorn. Learn about the three most important lines of latitude on Earth - the equator, Tropic of Cancer, and Tropic of Capricorn.
General Discussion. Hairy cell leukemia (HCL) is a rare type of blood cancer characterized by abnormal changes in white blood cells known as B lymphocytes. The bone marrow creates too many of these defective cells, known as hairy cells because of the thin hair-like projections found on their surface.
Advanced treatments for hairy cell leukemia. Treatment may not be needed for people in the early stages of hairy cell leukemia. Because this cancer progresses very slowly and sometimes doesn't progress at all, treatment is often recommended only after signs and symptoms develop. The majority of patients with hairy cell leukemia eventually require treatment.