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Blood lymphocyte volumes and diameters in patients with chronic lymphocytic leukemia and normal controls
Insights
Electronic modal lymphocyte volumes in chronic lymphocytic leukemia (CLL) patients were smaller than in healthy controls. This study found no correlation between cell size and clinical staging in CLL patients.
Area of Science:
- Hematology
- Oncology
- Biophysics
Background:
- Chronic lymphocytic leukemia (CLL) is a heterogeneous hematologic malignancy.
- Understanding lymphocyte volume characteristics is crucial for disease characterization.
- Previous studies suggested a link between cell size and CLL clinical staging.
Purpose of the Study:
- To determine the electronic modal lymphocyte volumes in CLL patients and normal controls.
- To investigate the relationship between lymphocyte volume and clinical staging (Rai and Binet classifications) in CLL.
Main Methods:
- Utilized a hydrodynamically focused multi-channel Coulter TF analyzer.
- Measured electronic modal lymphocyte volumes in 151 CLL patients and 305 healthy controls.
- Calculated mean cell diameters from volume data.
Main Results:
- Mean lymphocyte volume in CLL patients was 166 +/- 19.3 fL (diameter 6.8 micron).
- Mean lymphocyte volume in normal controls was 206 +/- 14.4 fL (diameter 7.3 micron).
- No significant correlation was found between lymphocyte volume and Rai or Binet clinical stages.
Conclusions:
- Lymphocyte volumes are significantly smaller in CLL patients compared to healthy individuals.
- Lymphocyte size does not appear to be a reliable indicator for clinical staging in CLL based on Rai and Binet classifications.
- These findings may refine our understanding of CLL pathophysiology and diagnostic parameters.
Abstract:
The electronic modal lymphocyte volumes of 151 patients with chronic lymphocytic leukemia (CLL) and 305 normal controls were determined by the hydrodynamically focused multi-channel Coulter TF analyser. The mean volumes of the normally distributed groups were 166 +/- 19.3 (range 126-216) fl in patients with CLL and 206 +/- 14.4 (range 126 +/- 246) fl in normal controls. The calculated cell diameters were 6.8 (6.2-7.4) micron and 7.3 (6.8-7.8) micron respectively. Our data do not support previous reports about relations between cell size and clinical stages of the Rai and Binet classifications.