在遗传性疾病的产前诊断中罕见的复杂情况是羊水细胞培养中混杂母体细胞的生长。根据最近在美国所调查的90,000例羊膜穿刺资料,发现如果丢弃开始的几毫升羊水进行细胞培养,母体细胞污染(MCC)就少见,当使用规格较大的针进行羊膜穿刺时,发生率可能较高。所以MCC最有可能的来源是被针抽出的母体组织碎片细胞过度 A rare complication in prenatal diagnosis of hereditary diseases is the growth of mixed maternal cells in amniotic fluid cell culture. According to the 90,000 cases of amniocentesis surveyed recently in the United States, maternal cell contamination (MCC) is rare if the initial few ml of amniotic fluid is discarded for cell culture, and amniocentesis when using a larger gauge needle may be more high. Therefore, the most likely source of MCC is the excess of maternal tissue debris cells drawn by needles