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为估价整倍体妊娠伴颈部水囊瘤的发展,1987年11月至1991年8月对行早期产前诊断的7189例孕妇进行检测。用3.5MHz扇形扫描机经腹作超声检查,如胎儿颈后部发现>3mm、增大而充满液体的结构,即诊断为先天性颈部水囊瘤。以后再经腹或经宫颈取绒毛,测定核型。由临床遗传学家对活产新生儿
To evaluate the development of euploid pregnancy with cervical cystadenoma, 7,189 pregnant women with early prenatal diagnosis were tested from November 1987 to August 1991. With a 3.5MHz fan scanner abdominal ultrasound, such as fetal neck found> 3mm, increased and filled with liquid structure, that is diagnosed as congenital neck water tumor. After the abdomen or cervix to take the hair, determination of karyotype. By clinical geneticists on live births