B-cell acute lymphoblastic leukemia: What to know – Medical News Today

B-cell acute lymphoblastic leukemia is a type of acute lymphoblastic leukemia (ALL). It is cancer that affects white blood cells known as B-cell lymphoblasts.
Lymphocytes form part of the immune system and protect the body against infections.
People who have B-cell acute lymphoblastic leukemia have too many immature B-cell lymphoblasts in their bloodstream and bone marrow that do not work correctly.
As these leukemia cells increase, there are fewer healthy, mature white blood cells that fight infections…

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