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目的报道一家系3例染色体t(9;15)平衡易位,分析其细胞遗传学特点。方法采用外周血淋巴细胞培养技术,对一家系7人进行常规G显带核型分析。结果一家两代人中有3例染色体同为t(9;15)平衡易位。结论平衡易位是导致不良孕产史的重要原因。应做好遗传咨询指导,对不良孕产史患者进行染色体检查。
Objective To report the equilibrium translocation of three chromosomes t (9; 15) in a pedigree and analyze its cytogenetic characteristics. Methods Peripheral blood lymphocyte culture technique was used to analyze the conventional G-banding karyotype of seven people in a pedigree. RESULTS: Three chromosomes in one generation had the same t (9; 15) translocation. Conclusion Balanced translocation is the leading cause of adverse pregnancy history. Good genetic counseling should be done, the history of poor pregnancy screening chromosomes.