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High frequency of acute promyelocytic leukemia in northwest Iran
1Hematology Oncology Research Department, Shahid Gazi Hospital, Tabriz University of Medical Sciences, Tabriz, Iran. jziaei@hotmail.com
Abstract:
Acute promyelocytic leukemia (APL) or M3 is a subtype of acute myeloid leukemia, according to the French-American-British group classification. High frequencies of APL have been reported previously by many investigators. We here studied AML patients to determine the frequency of APL in Tabriz in northwest Iran. We reviewed 483 AML patients from 1996-2003. M2 and M3 cases accounted for 43.4% and 19.4% of the total, respectively. Our study thus provides further evidence of high frequencies of APL associated with geographical areas. Further studies should now be performed to evaluate genetic and environmental predisposing factors in Iran.
Insights
This study investigated the occurrence of acute promyelocytic leukemia (APL), a subtype of acute myeloid leukemia, in Iran. High frequencies of APL were observed in Tabriz, suggesting geographical associations.
Area of Science:
- Hematology
- Oncology
- Epidemiology
Background:
- Acute promyelocytic leukemia (APL), classified as M3, is a distinct subtype of acute myeloid leukemia (AML).
- Previous research has indicated a high prevalence of APL in various populations.
- Geographical variations in APL incidence warrant further investigation.
Purpose of the Study:
- To determine the frequency of APL among acute myeloid leukemia patients in Tabriz, located in northwest Iran.
- To assess the prevalence of specific AML subtypes (M2 and M3) within the studied cohort.
- To contribute evidence regarding the geographical distribution of APL.
Main Methods:
- A retrospective review of 483 AML patients diagnosed between 1996 and 2003 in Tabriz, Iran.
- Classification of AML subtypes based on the French-American-British (FAB) group criteria.
- Analysis of the frequency distribution of different AML subtypes, specifically M2 and M3.
Main Results:
- Out of 483 AML patients, M2 and M3 subtypes constituted 43.4% and 19.4% of the total cases, respectively.
- The observed frequency of APL (M3) in this Iranian cohort was notably high.
- The findings support the hypothesis of elevated APL frequencies in specific geographical regions.
Conclusions:
- The study provides evidence for a high frequency of acute promyelocytic leukemia in the Tabriz region of Iran.
- Geographical factors may play a significant role in the prevalence of APL.
- Further research is recommended to explore potential genetic and environmental predisposing factors for APL in Iran.
