UTILITY OF CD200 IN THE DIFFERENTIAL DIAGNOSIS OF CHRONIC LYMPHOCYTIC LEUKEMIA AND MANTLE CELL LYMPHOMA
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Abstract
Objectives: To evaluate the diagnostic value of CD200 in distinguishing B-CLL from MCL and to describe the immunophenotypic features of both entities.
Study Design: Case series descriptive study.
Setting: The study was conducted at Ho Chi Minh City Blood Transfusion Hematology Hospital from June 2020 to August 2023.
Participants: A total of 85 patients diagnosed with B-CLL or MCL were included, comprising 70 cases of B-CLL and 15 cases of MCL.
Results: CD200 was positive in 100% of B-CLL cases and 13.3% of MCL cases (p<0.001). CD43 expression was significantly higher in B-CLL (87.1% vs 26.7%; p<0.001). In contrast, CD79b, FMC7, and monoclonal light-chain restriction were more frequent in MCL (p<0.05). No significant differences were observed for CD5, CD20, CD22, or CD23.
Conclusions: CD200 is a valuable immunophenotypic marker for distinguishing B-CLL from MCL. Combining CD200 with CD43, CD79b, FMC7, and light-chain restriction may improve the diagnostic accuracy of mature B-cell lymphoproliferative disorders.
Keywords
CD200, B-CLL, mantle cell lymphoma, flow cytometry
Article Details
References
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