Hematology

Welcome to your home for all things Mayo Clinic Hematology. At Mayo Clinic, hematologists work in collaboration with teams of experts from virtually every medical and surgical specialty for the care of adults and children with blood diseases, including various cancers of the blood and bone marrow.

Follow the Hematology page and stay up-to-date as we post stories, clinical trials, resources, and useful information regarding your hematological diagnosis. Post a comment and share your thoughts.

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Chronic lymphocytic leukemia (CLL)

Chronic lymphocytic leukemia (CLL) is a type of cancer of the blood and bone marrow — the spongy tissue inside bones where blood cells are made.

The term "chronic" in chronic lymphocytic leukemia comes from the fact that it typically progresses more slowly than other types of leukemia. The term "lymphocytic" in chronic lymphocytic leukemia comes from the cells affected by the disease — a group of white blood cells called lymphocytes, which help your body fight infection.

Chronic lymphocytic leukemia most commonly affects older adults. There are treatments to help control the disease.

The Chronic Lymphoproliferative Disorders Group at Mayo Clinic evaluates and treats patients with excess blood lymphocytes and disorders of the lymph nodes and spleen, including those diagnosed with:

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