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An acute myeloid leukemia case with concurrent 11q23 anomaly and D13S319 deficiency diagnosed by combined inter- and metaphase fluorescence in situ hybridization / 中华医学遗传学杂志
Chinese Journal of Medical Genetics ; (6): 48-51, 2020.
Article in Chinese | WPRIM | ID: wpr-798655
ABSTRACT
Objective@#To carry out multipath cytogenetic analysis of a rare case of acute myeloid leukemia (AML) with 11q23 aberration and D13S319 deletion.@*Methods@#G+ R banding technique was used to analyze the chromosomal karyotype of the patient after 24 h of cell culture. Combined interphase and metaphase fluorescence in situ hybridization (FISH) was used to detect specific chromosomal sites for complex translocations and minor missing fragments.@*Results@#The patient was found to harbor MLL-AF10 fusion gene due to rearrangement of the mixed lineage leukemia (MLL) gene in conjunct with deletion of the D13S319 locus on chromosome 13.@*Conclusion@#Whether MLL gene rearrangement and absence of D13S319 locus has a double impact on AML should attract more attention. For AML patient with clonal abnormalities such as 13q-, del (13)(q14), -13 or der (13), FISH assay should be proof and considered to determine the size of missing fragment so as targeted therapy may be implemented.

Full text: Available Index: WPRIM (Western Pacific) Type of study: Diagnostic study Language: Chinese Journal: Chinese Journal of Medical Genetics Year: 2020 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Type of study: Diagnostic study Language: Chinese Journal: Chinese Journal of Medical Genetics Year: 2020 Type: Article