hairy cell leukemia

Definition / meaning of hairy cell leukemia

A rare type of leukemia in which abnormal B-lymphocytes (a type of white blood cell) are present in the bone marrow, spleen, and peripheral blood. When viewed under a microscope, these cells appear to be covered with tiny hair-like projections.

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Find More About 'hairy cell leukemia'

Source(s):

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

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