WHAT IS CLL?
Chronic Lymphocytic Leukemia (CLL) is a one of the four main types of leukemia. It begins in the bone marrow, and starts with a change to a lymphocyte (a type of cell that fights infection). 
It can progress either slowly or quickly depending on the form it takes. CLL is the most common type of leukemia in adults, and the number of people with CLL starts to increase after age 50.
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WHAT IS LEUKEMIA?
Leukemia is a type of cancer that starts in blood-forming tissue, such as the bone marrow, and causes large numbers of abnormal blood cells to be produced and enter the bloodstream. Leukemias are named for how quickly the disease develops and worsens, either Acute or Chronic, and for the type of white blood cell that is affected, either a myeloid cell or lymphoid cell. 
The four most common types of leukemia include Acute Myeloid Leukemia (AML), Actute Lymphoblastic Leukemia (ALL), Chronic Myeloid Leukemia (CML), and Chronic Lymphocytic Leukemia (CLL). Other types of leukemia and related disorders includes Hairy Cell Leukemia, Chronic Myelomonocytic Leukemia (CMML), Juvenile Myelomonocytic Leukemia (JMML).
WHAT IS LYMPHOMA?
Non-Hodgkin lymphoma (NHL) is a cancer that begins in cells of the immune system. NHL has many different subtypes, which are identified as either indolent (slow growing) or aggressive (fast growing).
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