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Co-occurrence of t(8;21)(q22;q22) and t(9;22)(q34;q11) in a case with chronic myelogenous leukemia / 中华医学遗传学杂志
Chinese Journal of Medical Genetics ; (6): 253-256, 2019.
Article in Chinese | WPRIM | ID: wpr-772031
ABSTRACT
OBJECTIVE@#To delineate laboratory and clinical characteristics of a case with chronic myelogenous leukemia (CML) and co-occurrence of t(9;22)(q34;q11) and t(8;21)(q22;q22).@*METHODS@#The patient was subjected to cytogenetic, molecular, morphological and immunophenotypic analyses.@*RESULTS@#Cytogenetic analysis revealed presence of t(8;21)(q22;q22) in addition to t(9;22)(q34;q11) in the patient. Chimeric BCR/ABL and AML1/ETO genes were detected by fluorescence in situ hybridization (FISH). Transcripts of BCR/ABL210 and AML1/ETO fusion genes were detected by relative quantity PCR. Morphological study suggested that the patient was at the chronic phase of CML. No significant immunophenotypic abnormality was detected by flow cytometry.@*CONCLUSION@#Co-occurrence of t(8;21)(q22;q22) and t(9;22)(q34;q11) is rare in CML. Only 5 similar cases have been described previously. This case suggested that chromosomal alterations may precede morphological, flow cytometric and clinical changes and accelerate progression of the disease.
Subject(s)
Full text: Available Index: WPRIM (Western Pacific) Main subject: Translocation, Genetic / Leukemia, Myelogenous, Chronic, BCR-ABL Positive / Chromosome Aberrations / Fusion Proteins, bcr-abl / Chromosomes, Human / In Situ Hybridization, Fluorescence / Genetics Limits: Humans Language: Chinese Journal: Chinese Journal of Medical Genetics Year: 2019 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Main subject: Translocation, Genetic / Leukemia, Myelogenous, Chronic, BCR-ABL Positive / Chromosome Aberrations / Fusion Proteins, bcr-abl / Chromosomes, Human / In Situ Hybridization, Fluorescence / Genetics Limits: Humans Language: Chinese Journal: Chinese Journal of Medical Genetics Year: 2019 Type: Article