1病例报告孕妇,28岁,孕1产0,停经13周第6天来我院行常规产前检查。应用 ALOKAα10 彩色多普勒超声波诊断仪,探头频率3.5MHz。超声所见:宫内单胎,双顶径2.1cm,股骨长1.0cm,胎心率156/min;胎儿脑内结构紊乱,胎头横切面仅见单一侧脑室,脑中线及透明隔腔消失,丘脑呈融合状(见封4图1、图2),鼻骨显示不清。三维超声显示前额正中似可见一软组织突起。超声提示:(1)宫内妊娠,单 1 case report pregnant women, 28 years old, pregnant and a production of 0, 13 days after menopause 6 days to our hospital routine antenatal examination. Application ALOKAα10 color Doppler ultrasound diagnostic apparatus, probe frequency 3.5MHz. Ultrasound findings: intrauterine singleton, biparietal diameter 2.1cm, femur length 1.0cm, fetal heart rate 156 / min; fetus brain structure disorder, only a single lateral ventricle cross-sectional view of fetal head, midline and the transparent compartment disappeared, Thalamic fusion (see Figure 4, Figure 1, Figure 2), nasal bone unclear. Three-dimensional ultrasound shows a soft foregrip in the forehead. Ultrasonic tips: (1) intrauterine pregnancy, single