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孕妇,27岁。孕3产1流1。孕4个月时在外地医院行彩超检查,胎儿未见异常,现孕32周来我站行常规超声检查。彩超显示:胎儿头位,双顶径103 mm,头围377 mm,股骨长61 mm,腹围323 mm,羊水最大深度10 mm,胎盘附着于子宫后壁,1级,CDFI:脐动脉S/D=2.2,胎儿心率131次/min,胎儿颈部见“U”形凹陷,并可见脐血管血流信号。胎儿小脑蚓部缺如,颅后窝池前后径15 mm,第三脑室、侧脑室枕角、额角均明显扩张(图1)。胎儿双肾明显增
Pregnant woman, 27 years old. Pregnancy 3 1 flow 1. 4 months pregnant in the field hospital color Doppler ultrasound examination, no abnormal fetus, I now 32 weeks pregnant routine routine ultrasonic examination. Color Doppler ultrasound showed that fetal head position was biparietal diameter 103 mm, head circumference 377 mm, femur length 61 mm, abdominal circumference 323 mm, amniotic fluid maximum depth 10 mm, placenta attached to posterior uterine wall, grade 1, CDFI: umbilical artery S / D = 2.2, fetal heart rate 131 beats / min, fetal neck see “U ” shaped depression, and visible umbilical blood flow signal. Fetal cerebellar lack of vermis, posterior cranial fossa cistern diameter 15 mm, third ventricle, lateral ventricle occipital angle, forehead were significantly expanded (Figure 1). Fetal kidneys significantly increased