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采用外周血淋巴细胞培养技术对284例性分化异常患者进行染色体检查，发现性染色体异常81例共21种不同类型（异常率28．5％），并分析了异常核型对表型效应的关系。提示性染色体异常是导致性分化异常的重要原因之一，对该类患者进行细胞遗传学检查有助于病因的诊断及临床处理。
Chromosome examination was performed in 284 patients with differentiated dysplasia using peripheral blood lymphocyte culture. A total of 21 different types of chromosomal abnormalities (abnormality rate: 28.5%) were found in 81 patients, and the relationship between abnormal karyotype and phenotypic effects was analyzed . Prompted chromosomal abnormalities is one of the important causes of abnormal differentiation. Cytogenetic examination of these patients is helpful for the diagnosis and clinical treatment of etiology.