Precursor B cell lymphoid blast crisis of chronic myeloid leukemia with novel chromosomal abnormalities: A case report
Chronic myeloid leukemia (CML) is a clonal hematopoietic stem cell disorder. It is characterized by the presence of the Philadelphia (Ph) chromosome, t(9;22)(q34.1;q11.2), which carries the BCR-ABL1 fusion gene. Tyrosine kinase inhibitors (TKIs) have markedly changed the treatment approach of CML and have become the first-line agents for almost all CML patients. However, certain patients experience resistance to these medications, which occurs through several mechanisms, including the accumulation of TKI-resistant chromosomal abnormalities. The present study reports a case of a 27-year-old Saudi male with CML receiving TKI treatment, who presented with precursor B-cell lymphoblastic crisis demonstrating the presence of the novel combined chromosomal abnormalities; non-Ph der(22), i(9) and der(20), carrying the BCR-ABL1 fusion gene. This case report adds to the literature on novel TKI-resistance-conferring chromosomal abnormalities and links them to precursor B-cell lymphoblastic crisis.Keywords: blast crisis; chronic myeloid leukemia; cytogenetic abnormalities; precursor B cell; tyrosine kinase inhibitor.
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基因水平:PCR Array、RT-PCR、PCR、单细胞测序
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细胞水平:细胞染色、细胞分选、细胞培养、细胞功能
组织水平:空间多组学、多重荧光免疫组化、免疫组化、免疫荧光
数据分析:流式数据分析、组化数据分析、多因子数据分析
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