Cytogenetic profile of a large cohort of Tunisian de novo acute myeloid leukemia.
Hematology
; 17(1): 9-14, 2012 Jan.
Article
en En
| MEDLINE
| ID: mdl-22549442
ABSTRACT
BACKGROUND:
Cytogenetic data are essential not only for the diagnosis of acute myeloid leukemia but also for the evaluation of prognosis. Large systematic studies of cytogenetic aberrations in patients with acute myeloid leukaemia (AML) from Arab countries are not available.METHODS:
We analysed 631 consecutive newly diagnosed AML patients by conventional cytogenetics and compared our results with reports from other regions of the world. There were 97 (15·4%) children and 534 (84·6%) adults.RESULTS:
Abnormal karyotypes were found in 397 (62·9%) of all cases. T(15;17) and t(8;21) were the most frequent chromosomal abnormalities observed in 83 (13·2%) and in 78 (12·4%) patients, respectively. -5/del(5q) and -7/del(7q) were less frequent, seen in only 14 (2·2%) and 19 (3%) cases, respectively. Trisomy 8 was found in 44 (7%) of our patients followed by 11q23 rearrangements seen in 24 (3·8%) and then by inv(16) observed in only 22 (3·5%) of all cases. Unusual or novel cytogenetic abnormalities were found in 107 (17%) of our patients.DISCUSSION:
Although we confirmed, as usually described, that some recurrent cytogenetic abnormalities are correlated with the FAB subtypes, we noted however that some of them vary in frequency among different geographical areas and ethnic groups. This finding suggests a geographic heterogeneity in the pathogenesis of AML but more extensive epidemiological studies are required to confirm this.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Leucemia Mieloide Aguda
Tipo de estudio:
Diagnostic_studies
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Etiology_studies
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Incidence_studies
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Observational_studies
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Prognostic_studies
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Risk_factors_studies
Límite:
Adolescent
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Adult
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Aged
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Aged80
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Child
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Child, preschool
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Female
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Humans
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Infant
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Male
País/Región como asunto:
Africa
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Asia
Idioma:
En
Revista:
Hematology
Asunto de la revista:
HEMATOLOGIA
Año:
2012
Tipo del documento:
Article
País de afiliación:
Túnez