Synonyms
Definition
Lymphocytosis is an increase in the number of lymphocytes, usually measured in peripheral blood. In the absence of disease, this increase in cell number is normally caused by a transient mobilization or migration of lymphocytes into the circulation, rather than an increase in cell division.
Description
Background
Cytosis – the suffix of the term lymphocytosis – combines cyto (meaning cells) and osis (meaning pathology or process, such as transport) and is used to describe the frequency of most immune cells in peripheral blood. Leukocytosis is an increase of all leukocytes above 11 × 109/L of blood. Lymphocytosis is an increase of lymphocytes above 4.5 × 109/L of blood. Monocytosis is an increase of monocytes above 0.88 × 109/L of blood. Granulocytosis is an increase of granulocytes above 7.0 × 109/L of blood (Riley and Rupert 2015). High numbers of lymphocytes, monocytes, or granulocytes, measured under resting conditions (i.e., without...
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Brown, F.F., Turner, J.E. (2020). Lymphocytosis. In: Gellman, M.D. (eds) Encyclopedia of Behavioral Medicine. Springer, Cham. https://doi.org/10.1007/978-3-030-39903-0_101907
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DOI: https://doi.org/10.1007/978-3-030-39903-0_101907
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