先证者,男,33岁,因其妻第一胎足月顺产一女婴,新生儿三天后因“先天性肺部发育不良”死亡来我所专科门诊就诊。先证者表型和智力都正常。夫妻非近亲结婚,女方妊娠期间无疾病和服药史。细胞遗传学检查采用外周血淋巴细胞培养,常规制片,G显带,进行染色体核型分析,每例都随机计数3 Probate, male, 33 years old, because of his wife’s first full-term birth of a baby baby, three days after the newborn died of “congenital pulmonary dysplasia” to my specialist clinic. The proband’s phenotype and intelligence are normal. Married couples non-relatives married, the woman had no history of pregnancy and medication during pregnancy. Cytogenetic tests using peripheral blood lymphocyte culture, conventional production, G banding, chromosome karyotyping, each case were randomly counted 3