Hairy cell leukemia (Leukemic reticuloendotheliosis, HCL, Leukemia

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Hairy cell leukemia

Alternate Names : Leukemic reticuloendotheliosis, HCL, Leukemia - hairy cell

Definition

Hairy cell leukemia (HCL) is a rare cancer of the blood. It affects B cells, a type of white blood cell (lymphocyte).

Overview, Causes, & Risk Factors

HCL is caused by the abnormal growth of B cells. The cells can look "hairy" under the microscope because they have fine projections coming from their surface.

HCL can lead to low numbers of normal blood cells.

The cause of this disease is unknown. It affects men more often than women. The average age of onset is 55. Hairy cell leukemia is rare.

Pictures & Images

Bone marrow aspiration

Auer rods

Hairy cell leukemia - microscopic view

Formed elements of blood

Enlarged spleen

See all Pictures & Images

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Hairy cell leukemia : Definition
Hairy cell leukemia : Overview, Causes, & Risk Factors
Hairy cell leukemia : Symptoms & Signs
Hairy cell leukemia : Diagnosis & Tests
Hairy cell leukemia : Treatment
Hairy cell leukemia : Prognosis (Expectations)
Hairy cell leukemia : Complications
Hairy cell leukemia : Calling Your Health Care Provider
Hairy cell leukemia : Prevention
Hairy cell leukemia : References
Hairy cell leukemia : Pictures & Images
Bone marrow aspiration
Auer rods
Hairy cell leukemia - microscopic view
Formed elements of blood
Enlarged spleen

Review Date : 7/11/2008
Reviewed By : David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine; and James R. Mason, MD, Oncologist, Director, Blood and Marrow Transplantation Program and Stem Cell Processing Lab, Scripps Clinic, Torrey Pines, California. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

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