A condition marked by an abnormal increase in the number of lymphocytes in the bloodstream, usually resulting from infection or inflammation.
lymphocytotic lym'pho·cy·tot'ic (-tŏt'ĭk) adj.
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Dental Dictionary:
lymphocytosis
(lim'fōsītō'sis)
n
An absolute or relative increase in the normal number of lymphocytes in the circulating blood. Various limits are given; for example, absolute lymphocytosis is said to be present if the total number of cells exceeds 4500/mm3, whereas relative lymphocytosis is said to be present if the percentage of lymphocytes is greater than 45% and the total number of cells is less than 4500/mm3. Lymphocytosis may be associated with infancy, exophthalmic goiter, mumps, rubella, infectious mononucleosis, sunburn, lymphatic leukemia, pertussis, and pyogenic infections in childhood.
Veterinary Dictionary:
lymphocytosis
Increase in the number of normal lymphocytes in the blood or in an effusion.
Wikipedia:
lymphocytosis
| ICD-10 | D72.8 |
|---|---|
| ICD-9 | 288.8 |
| DiseasesDB | 7678 |
Lymphocytosis is an increase in the number of lymphocytes in the blood. Lymphocytosis conventionally refers to a lymphocyte count greater than 4000 per microliter, however the number may be higher in infants and children. It is common in acute viral infections, including glandular fever, but it may also be seen with intracellular bacterial infections, such as in tuberculosis. The malignant blood disease chronic lymphocytic leukaemia can cause a massive lymphocytosis, as can other leukaemias. In hairy cell leukemia, the presence of substantial numbers of hairy cells in the blood stream can cause lymphocytosis. Lymphocytosis, preceded by leukopenia, is also seen in the Icteric Phase of a viral hepatitis infection.
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Copyrights:
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 | Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2007. Published by Houghton Mifflin Company. All rights reserved. Read more |
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| Dental Dictionary. Mosby's Dental Dictionary. Copyright © 2004 by Elsevier, Inc. All rights reserved. Read more |
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| Veterinary Dictionary. Saunders Comprehensive Veterinary Dictionary 3rd Edition. Copyright © 2007 by D.C. Blood, V.P. Studdert and C.C. Gay, Elsevier. All rights reserved. Read more |
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| Wikipedia. This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Lymphocytosis". Read more |
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