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Lymphocytosis of Large Granular Lymphocytes
Wing C. Chan, MD;
Elliott F. Winton, MD;
Thomas A. Waldmann, MD
Arch Intern Med. 1986;146(6):1201-1203.
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| Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings. |
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In normal human peripheral blood, there is a population of large lymphocytes with slightly eccentric nuclei and abundant pale-blue cytoplasm containing many azurophilic granules. These lymphocytes have been termed large granular lymphocytes (LGLs). It is now clear that almost all natural-killer and antibody-dependent cell-mediated cytotoxic activity resides in this population of cells.1,2 Despite their morphologic similarity, immunologic analysis has shown striking heterogeneity in their surface antigens.3,4 Almost all of these cells bear surface receptors for the Fc fragment of IgG, but some express antigens generally found on T-lymphocytes. Others show surface antigens carried by myelomonocytic cells. This may indicate the presence of multiple distinct subpopulations of cells or a single population of cells expressing different surface antigens at different stages of maturation or functional activity.5 Whether LGLs are derived from the T cell or the myelomonocytic lineage is still not clear.
There have been an increasing number
. . . [Full Text PDF of this Article]
Author Affiliations
From the Department of Pathology and Laboratory Medicine (Dr Chan), and the Division of Hematology and Oncology, Department of Medicine (Dr Winton), Emory University School of Medicine, Atlanta, and the Metabolism Branch, National Cancer Institute, National Institutes of Health, Bethesda, Md (Dr Waldmann).
Footnotes
Accepted for publication Aug 12, 1985.
Reprint requests to Emory University School of Medicine, Department of Pathology and Laboratory Medicine, Atlanta, GA 30322 (Dr Chan).
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