eISSN: 2354-0265
ISSN: 2353-6942
Health Problems of Civilization Physical activity: diseases and issues recognized by the WHO
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2/2024
vol. 18
 
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DISEASES AND PROBLEMS DISTINGUISHED BY WHO AND FAO
abstract:
Case report

MYELODYSPLASTIC SYNDROME NOT OTHERWISE CLASSIFIED. DO AUTOMATIC METHODS CORRELATE WITH THE MICROSCOPIC METHOD OF BLOOD SMEAR ASSESSMENT?

Milena Małecka-Giełdowska
1
,
Katarzyna Poreda
2
,
Agata Skwarek
2
,
Michalina Lulek
2

  1. Department of Laboratory Medicine, Medical University of Warsaw, Poland
  2. Students Scientific Group of Laboratory Medicine, Medical University of Warsaw, Warsaw, Poland
Health Prob Civil. 2024; 18(2): 174-179
Online publish date: 2024/01/29
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Myelodysplastic syndromes (MDS) are a heterogeneous group of clonal malignancies of the hematopoietic system, characterized by ineffective hematopoiesis with peripheral cytopenias. The aim of the study was to detect differences between automatic leukocyte separation and microscopic evaluation of a blood smear in a patient with MDS. A 68-year-old patient with a history of MDS pancytopenia and vascular bleeding diathesis was admitted to the Department of Internal Diseases and Endocrinology of the University Clinical Centre of the Medical University of Warsaw. The patient was diagnosed with metabolic alkalosis, renal failure and hyperparathyroidism. Morphological examinations showed persistent pancytopenia. The microscopic evaluation of the blood smear showed features of dysplasia, e.g. asynchrony of nucleus/cytoplasm maturation, hypogranulation of the granulocyte cytoplasm, unequal distribution of granules in the cytoplasm, and hyposegmentation in neutrophils. Complete blood count and blood smear were presented as percentages obtained from automatic leukocyte separation and microscopic smear evaluation of three consecutive patient examinations, respectively. The largest discrepancies were in the proportion of eosinophils (0.6%/1.3%/0% vs. 29.5%/26.0%/9.0%), neutrophils (49.7%/41.7%/32.4% vs 26.0%/13.6%/22.0%) and atypical lymphocytes (4.4%/2.9% vs 2.4%/5.0%). Microscopic analysis also showed the presence of eosinophils at various stages of maturation (eosinophilic myelocytes). Automatic blood smear analysis compared to manual analysis can show significantly different results. To diagnose diseases of the hematopoietic system, it is recommended to verify the results of the tests using the microscopic method. Bone marrow cytogenetic and molecular tests can also be performed as an auxiliary.
keywords:

pancytopenia, myelodysplastic syndrome, blood smear, complete blood count, lymphocytes


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