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Year : 2017  |  Volume : 54  |  Issue : 3  |  Page : 572-575

Prevalence of cytogenetic abnormalities in chronic lymphocytic leukemia in the southern part of Turkey

1 Department of Pathology, Faculty of Medicine, Çukurova University, Adana, Turkey
2 Department of Medical Oncology, Faculty of Medicine, Çukurova University, Adana, Turkey
3 Department of Hematology, Faculty of Medicine, Çukurova University, Adana, Turkey

Correspondence Address:
Dr. Emine Kilic Bagir
Department of Pathology, Faculty of Medicine, Çukurova University, Adana
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ijc.IJC_291_17

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BACKGROUND: Chronic lymphocytic leukemia (CLL) is the most common type of leukemia among adults in Western populations. CLL has a wide range of clinical presentations and varied outcomes. For CLL, cytogenetic assessment is essential for estimating prognoses and determining the treatment of choice. The fluorescence in situ hybridization (FISH) technique is widely used for genetic assessment due to its high sensitivity. AIM: This study aimed to evaluate the frequencies of deletions of 13q14.3, 17p13.1, 11q22.3, and 13q34 and of trisomy 12 and to observe their effects on survival in 226 Turkish CLL patients using FISH analysis. RESULT AND CONCLUSION: The frequencies of abnormalities were 65.4% for del 13q14.3, 39.8% for del 17p13.1, 19% for del 11q22.3 (del ATM), and 15.9% for trisomy 12. No patients had a 13q34.3 aberration. Our results are partially consistent with literature findings. However, certain conflicts with prior results were observed, particularly with respect to the high prevalence of 17p13.1 deletions and the enhanced survival of patients with such deletions. These inconsistencies may represent population-based differences in the genetic epidemiology of CLL.


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