| 1 King George’s Medical University, Lucknow, India |
Abstract
Background and Aim of Study: There are two different phases of untreated chronic myeloid leukemia – chronic phase, and blast crisis – according to the World Health Organization classification of Hematolymphoid tumors. The blast cells in the chronic myeloid leukemia blast crisis can express myeloid, lymphoid, bi-phenotypic, monocytic, megakaryocytic, and erythroid phenotypes. The immunophenotype of blast population determines how chronic myeloid leukemia – blast crisis patients respond to treatment, hence flowcytometric examination is required.
The aim of the study: to assess immunophenotyping outcomes of flowcytometry performed on the chronic myeloid leukemia – blast crisis.
Material and Methods: A five-year retrospective descriptive analysis was carried out in Pathology Department at King George’s Medical University Lucknow, India (2017-2021). The patient’s peripheral blood and bone marrow aspirate samples were analyzed. Clinical, hematological, and immunophenotypic data were retrieved. The flow cytometry samples were prepared using the standardized “lyse-stain-wash” method.
Results: A total of 43 cases of chronic myeloid leukemia – blast crisis were retrieved from the departmental archive in 5 years. The mean age of study population was 39.62±14.86 years. There were 24 males and 19 females. 27 patients were diagnosed with myeloid blast crisis, 14 cases of B-lymphoid blast crisis and 2 cases of mixed phenotypic acute leukemia.
Conclusions: Identification of the blast lineage of patients with chronic myeloid leukemia – blast crisis is crucial since the existence of atypical blast phenotypes influences the disease treatment and prognosis.
Keywords
immunophenotyping, flowcytometry, chronic myeloid leukemia, lymphoid blast, myeloid blast, mixed phenotypic acute leukemia
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Singh Akanksha (Corresponding Author) – https://orcid.org/0000-0001-5398-6203;
Singh Anurag – https://orcid.org/0000-0002-1979-8847; MD, Senior Resident, Department of Pathology, King George’s Medical University, Lucknow, India.
Kanaujia Sweta – https://orcid.org/0000-0003-3369-1664; MD, Resident, Department of Pathology, King George’s Medical University, Lucknow, India.
Kushwaha Rashmi – https://orcid.org/0000-0002-0581-2177; MD, Professor, Department of Pathology, King George’s Medical University, Lucknow, India.
Singh Uma Shankar – https://orcid.org/0000-0002-9748-9484; MD, Professor, Head of the Department of Pathology, King George’s Medical University, Lucknow, India.
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APA
Singh, Ak., Singh, An., Kanaujia, S., Kushwaha, R., & Singh, U. S. (2022). Blast crisis in chronic myeloid leukemia: An immunophenotypic analysis. International Journal of Science Annals, 5(1-2), 31–37. https://doi.org/10.26697/ijsa.2022.1-2.3
Harvard
Singh, Ak., Singh, An., Kanaujia, S., Kushwaha, R., & Singh, U. S.. 2022. "Blast crisis in chronic myeloid leukemia: An immunophenotypic analysis". International Journal of Science Annals, [online] 5(1-2), pp. 31-37. viewed 25 December 2022, https://culturehealth.org/ijsa_archive/ijsa.2022.1-2.3.pdfVancouver
Singh Ak., Singh An., Kanaujia S., Kushwaha R., & Singh U. S. Blast crisis in chronic myeloid leukemia: An immunophenotypic analysis. International Journal of Science Annals [Internet]. 2022 [cited 25 December 2022]; 5(1-2): 31-37. Available from: https://culturehealth.org/ijsa_archive/ijsa.2022.1-2.3.pdf https://doi.org/10.26697/ijsa.2022.1-2.3
