Ｂ超诊断先天性无脑畸胎２例新疆克拉玛依市白碱滩医院Ｂ超室邮政编码８３４００９李兆云，谢淑芝例１女，２６岁，中孕２７周，Ｂ超扫查所见，羊水平均厚度７８ｍｍ，胎动活跃，胎儿搏动节律规则，胎盘位于宫底，Ⅰ级，脊椎序列完整，腹部各区扫查，未见明确胎头回声环，... B ultrasound diagnosis of congenital absence of brain teratogenesis in 2 cases Bajitan Beach Karamay City, Xinjiang B-room Zip code 834009 Li Zhaoyun, Xie Shuzhi Case 1 female, 26 years old, 27 weeks of pregnancy, B-scan seen, the average thickness of amniotic fluid 78mm , Fetal movement, fetal beat rules of rhythm, placenta at the end of the uterus, grade Ⅰ, complete spinal sequence, abdomen area scanning, no clear fetal head echo ring, ...