Transient stress lymphocytosis: an immunophenotypic characterization of the most common cause of newly identified adult lymphocytosis in a tertiary hospital. Am J Clin Pathol 2002 May;117(5):819-25
Date
07/02/2002Pubmed ID
12090434DOI
10.1309/DU0B-EBFL-3EXY-VUFPScopus ID
2-s2.0-0036232988 (requires institutional sign-in at Scopus site) 32 CitationsAbstract
We prospectively evaluated 52 consecutive cases of newly identified absolute lymphocytosis to determine the hematologic and immunophenotypic features of transient stress lymphocytosis (TSL). The lymphocytosis in all cases was associated with an acute stressful event and ranged from 4,000 to 10,400/microL (4.0-10.4 x 10(9)/L). Compared with healthy individuals, patients with TSL showed an increase in the total WBC, absolute lymphocyte (ALC), absolute neutrophil (ANC), and platelet counts with no difference in hemoglobin levels. Immunophenotypic analyses of 38 cases revealed increases in absolute numbers of T B, and natural killer cells. Both CD4+ and CD8+ T cells were increased, predominantly accountedfor by an increase in memory cell subsets, with no change in gamma/delta T cells. Follow-up studies showed a significant reduction in the ALC with a concurrent increase in the ANC and reduction in hemoglobin values. The reduction in lymphocytes at resolution was accompanied by reduction in all broad Iymphocyte subsets. However, naive and memory subsets showed different patterns of alteration within the CD4+ and CD8+ populations, suggesting that acute stress differentially affects the in vivo distribution of these subsets.
Author List
Karandikar NJ, Hotchkiss EC, Mckenna RW, Kroft SHAuthor
Steven Howard Kroft MD Chair, Professor in the Pathology department at Medical College of WisconsinMESH terms used to index this publication - Major topics in bold
AdolescentAdult
Aged
Aged, 80 and over
Female
Flow Cytometry
Hospitals, University
Humans
Immunophenotyping
Leukocyte Count
Lymphocyte Subsets
Lymphocytosis
Male
Middle Aged
Prospective Studies
Stress, Psychological
