Hairy cell leukemia overview: Difference between revisions

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Revision as of 13:58, 17 September 2012

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

A rare neoplasm of small B-lymphocytes with "hairy" projections in bone marrow, spleen, and peripheral blood. Most patients are middle-aged to elderly adults and present with splenomegaly and pancytopenia. (WHO, 2001)

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+__NOTOC__
 {{Hairy cell leukemia}}
 {{CMG}}
 ==Overview==
-'''Hairy cell leukemia''' is a mature B cell [[neoplasm]].  It is usually classified as a sub-type of [[chronic lymphoid leukemia]] for convenience.  It is uncommon, representing about 2% of all leukemias, or less than a total of 2000 new cases diagnosed each year in the North America and Western Europe combined.
+A rare neoplasm of small B-lymphocytes with "hairy" projections in bone marrow, spleen, and peripheral blood. Most patients are middle-aged to elderly adults and present with splenomegaly and pancytopenia. (WHO, 2001)
-Originally known as histiocytic leukemia, malignant reticulosis, or lymphoid myelofibrosis in publications dating back to the 1920s, this disease was formally named leukemic reticuloendotheliosis and its characterization significantly advanced by Bertha Bouroncle, M.D., and her colleagues at the [[OSU College of Medicine and Public Health|Ohio State University College of Medicine]] in 1958.  Its common name, which was coined in 1966<ref>{{cite web |url=http://bloodjournal.hematologylibrary.org/cgi/content/abstract/27/2/199 |title="Hairy" Cells in Blood in Lymphoreticular Neoplastic Disease and "Flagellated" Cells of Normal Lymph Nodes -- SCHREK and DONNELLY 27 (2): 199 -- Blood |accessdate=2007-09-10 |format= |work=}}</ref>, is derived from the appearance of the cells under a microscope.
-==Diagnosis==
-[[Image:Hairy Cell Leukemia.jpg|thumb|left|Hairy Cell Leukemia <ref>http://picasaweb.google.com/mcmumbi/USMLEIIImages</ref>]]
-The diagnostic path may have begun with a simple test like a [[complete blood count]], but this is not adequate to diagnose HCL.  A CBC normally shows low counts for white blood cells, red blood cells, and platelets in HCL patients, but if large numbers of hairy cells are in the blood stream, then normal or even [[lymphocytosis|high lymphocyte counts]] may be found.
 ==References==
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 [[Category:Disease]]
 [[Category:Types of cancer]]
 [[Category:Hematology]]
 [[Category:Oncology]]

Hairy cell leukemia overview: Difference between revisions

Revision as of 13:58, 17 September 2012

Overview

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