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.
The exact cause of hairy cell leukemia is unknown. The specific symptoms of hairy cell leukemia are due to overproduction of abnormal âhairyâ cells, which results in a deficiency of the three main types of blood cells â red and white blood cells and platelets.