The Role of CD200 and CD43 Expression in Differential Diagnosis between Chronic Lymphocytic Leukemia and Mantle Cell LymphomaMesude Falay, Berna Afacan Öztürk, Kürşad Güneş, Yasin Kalpakçı, Simten Dağdaş, Funda Ceran, Gülsüm ÖzetUniversity Ministry of Health, Ankara Numune Training and Research Hospital, Clinic of Hematology, Ankara, Turkey
Objective: Atypical chronic lymphocytic leukemia (CLL) is most frequently confused with mantle cell lymphoma (MCL). Several markers may contribute to the diagnosis of CLL. However, there is no consensus on which markers are needed to be used in flow cytometry for the diagnosis of CLL. The aim of the present study was to investigate the role of CD43 and CD200 markers in the differential diagnosis between CLL and MCL.
Materials and Methods: To address this issue, 339 consecutive patients with CLL and MCL were included in the flow cytometry lymphoproliferative disease panel for evaluation of CD43 and CD200 expressions, but not in the Matutes scoring system.
Results: CD200 was expressed in 97.3% of atypical CLL cases, whereas it was dimly expressed in only 6.1% of MCL cases. CD43 expression was 95.7% in atypical CLL cases. In the MCL cases, its expression rate was 39.4%.
Conclusion: CD43 and CD200 were found to be more valuable markers than CD22, CD79b, and FMC7. CD43 and CD200 could also be considered as definitive markers in atypical CLL patients, for whom the Matutes scoring system remains ineffective.
Keywords: Chronic lymphocytic leukemia, Mantle cell lymphoma, Immunophenotyping, CD200, CD43
Kronik Lenfositik Lösemi ve Mantle Hücreli Lenfoma Ayırıcı Tanısında CD200 ve CD43 Ekspresyonunun RolüMesude Falay, Berna Afacan Öztürk, Kürşad Güneş, Yasin Kalpakçı, Simten Dağdaş, Funda Ceran, Gülsüm ÖzetTC Saglik Bakanligi Ankara Numune Egitim ve Arastirma Hastanesi - Hematology, Ankara, Turkey
Amaç: İmmünfenotip olarak atipik kronik lenfositik lösemi (KLL) ile mantle cell lenfoma (MCL) sıklıkla karışabilmektedir. KLL tanısı için birçok marker kullanılmaktadır, ancak akım sitometride KLL tanısı için tam bir konsensüs oluşmamıştır. Bu çalışmada KLL ve MCL ayırıcı tanısında CD43 ve CD200 ifadeleri araştırılmıştır.
Gereç ve Yöntem: Matutes skorlama sisteminde olmayan CD43 ve CD200’ü akım sitometri lenfoproliferatif hastalık paneline dahil ederek 339 KLL ve MCL olgusunda incelenmiştir.
Bulgular: Atipik KLL olgularının %97,3’ünde CD200 pozitifken MCL olgularının ise sadece %6,1’inde düşük oranda ifade ediliyordu. CD43’te atipik KLL olgularının %95,7’sinde ifade edilirken MCL olgularının %39,4’ünde donuk ifade ediliyordu.
Sonuç: CD43 ve CD200; CD22, CD79b ve FMC7’ye göre daha anlamlı bulundu. CD43 ve CD200 Matutes skorlama sistemi skorunun yetersiz kaldığı KLL olgularının tanısında tamamlayıcı marker olarak kullanılabilir.
Anahtar Kelimeler: Kronik lenfositik lösemi, Mantle cell lenfoma, İmmünfenotiplendirme, CD200, CD43
Mesude Falay, Berna Afacan Öztürk, Kürşad Güneş, Yasin Kalpakçı, Simten Dağdaş, Funda Ceran, Gülsüm Özet. The Role of CD200 and CD43 Expression in Differential Diagnosis between Chronic Lymphocytic Leukemia and Mantle Cell Lymphoma. Turk J Hematol. 2018; 35(2): 94-98
Corresponding Author: Mesude Falay, Türkiye |
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