Leukemia

Leukemia is a type of cancer that affects the blood and bone marrow.

Leukemia begins in a cell in the bone marrow. The cell undergoes a change and becomes a type of leukemia cell. Once the marrow cell undergoes a leukemic change, the leukemia cells may grow and survive better than normal cells. Over time, the leukemia cells crowd out or suppress the development of normal cells. The rate at which leukemia progresses and how the cells replace the normal blood and marrow cells are different with each type of leukemia.

After diagnosis and treatment, many people with leukemia live many good, quality years. You may find that knowing more about the disease and its treatment can help you cope.

Types of Leukemia

Acute Lymphoblastic Leukemia

Acute Lymphoblastic Leukemia Is a cancer of the bone marrow and blood Progresses rapidly without treatment Does not have a clear cause Click here to access ALL statistics.    What You Should Know It's important to start treatment soon after diagnosis. ALL is also called acute lymphocytic leukemia and acute lymphoid leukemia. ALL affects the blood cells and immune system. The...

Acute Myeloid Leukemia

Acute myeloid leukemia (AML) Is a cancer of the bone marrow and the blood Progresses rapidly without treatment Affects mostly cells that aren't fully developed- these cells can't carry out their normal functions Can be a difficult disease to treat. Researchers are studying new approaches to AML therapy in clinical trials. Click here to access AML statistics.     What You Should Know ...

Chronic Lymphocytic Leukemia

Chronic lymphocytic leukemia (CLL) Is a type of blood cancer that begins in the bone marrow Can progress either slowly or quickly depending on the form it takes Click here to access CLL statistics. What You Should Know CLL is the most common type of leukemia in adults. Hematologists and oncologists are specialists who treat people who have CLL or other types of blood cancer. Some people have...

Chronic Myeloid Leukemia

Financial Assistance for PCR Testing Do you have chronic myeloid leukemia? Need assistance paying for your PCR tests? LLS can help. LEARN MORE Chronic myeloid leukemia (CML) Is a cancer of the bone marrow and blood CML is usually diagnosed in its chronic phase when treatment is very effective for most patients CML has three phases Click here to access CML statistics.  &nb...

Hairy Cell Leukemia

Hairy cell leukemia (HCL) Is a type of blood cancer that begins in the bone marrow Is a rare type of leukemia in adults Hairy cell leukemia gets its name from the short, thin projections that look like hair on its cells.   What You Should Know Many people with hairy cell leukemia live good-quality lives for years with medical care. Hematologists and oncologists are specialists who treat...

Chronic Myelomonocytic Leukemia

Chronic myelomonocytic leukemia (CMML) Is an uncommon blood cancer that has features of two other types of blood cancers. For this reason, the World Health Organization (WHO) classifies CMML as a mixed myelodysplastic/myeloproliferative disease. Affects approximately three in 100,000 individuals in the United States each year. Generally affects older adults. Is diagnosed in twice as many males than f...

Juvenile Myelomonocytic Leukemia

Juvenile myelomonocytic leukemia (JMML) Is an uncommon blood cancer that can progress rapidly without treatment. Has features of two other types of blood cancers. For this reason, the World Health Organization (WHO) classifies JMML as a mixed myelodysplastic/myeloproliferative disease. Is most commonly diagnosed in infants and children younger than 6 years old. Is often diagnosed in infants between a...

Large Granular Lymphocytic Leukemia

Large granular lymphocytic (LGL) leukemia is a type of chronic leukemia affecting white blood cells called "lymphocytes."  Lymphocytes are part of the body's immune system and help fight certain infections. LGL leukemia is characterized by enlarged lymphocytes, containing noticeable granules, which can be seen when the blood is examined under the microscope. There are two types of LGL leukemia: T-cell (T-LGL) an...

Blastic Plasmacytoid Dendritic Cell Neoplasm

For personalized disease and treatment information, or to learn about clinical trials, contact one of The Leukemia & Lymphoma Society's (LLS's) Information Specialists at (800) 955-4572.   Background Blastic plasmacytoid dendritic cell neoplasm (BPDCN), previously known as natural killer (NK) cell leukemia/lymphoma, is categorized by the World Health Organization (4th edition, 2008) u...