precursor B-lymphoblastic leukemia

Definition / meaning of precursor B-lymphoblastic leukemia

An aggressive (fast-growing) type of leukemia (blood cancer) in which too many B-cell lymphoblasts (immature white blood cells) are found in the bone marrow and blood. It is the most common type of acute lymphoblastic leukemia (ALL). Also called B-cell acute lymphoblastic leukemia and B-cell acute lymphocytic leukemia.

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Find More About 'precursor B-lymphoblastic leukemia'

Source(s):

The Web site of the National Cancer Institute (http://www.cancer.gov/)

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