标题：妊娠早期胎儿小下颌畸形的声像图表现

      作者：温影红，甄朝炯，曹韵清，魏晏平    佛山市第一人民医院超声诊疗中心，广东 佛山 528000

      卷次： 2019年30卷19期

      【摘要】 目的 探讨鼻后三角切面下颌间隙在筛查妊娠早期胎儿小下颌畸形的应用价值。方法 选取2014年1月至2018年5月佛山市第一人民医院检查发现的10例11~13+6孕周小下颌畸形胎儿，分析其声像图特点。结果 10例11~13+6孕周胎儿诊断为小下颌畸形。10例胎儿颜面部正中矢状切面均显示下颌骨短小、颏后缩。8例鼻后三角切面上显示下颌间隙消失，被骨性强回声取代；2例为严重小下颌，鼻后三角切面未能显示下颌骨，也未能显示下颌间隙。6例胎儿合并其他部位结构畸形。所有病例均经引产后证实。结论 观察鼻后三角切面下颌间隙有助于妊娠早期诊断胎儿小下颌畸形。
      【关键词】 小下颌；妊娠早期；下颌间隙；鼻后三角；超声检查
      【中图分类号】 R714.53 【文献标识码】 A 【文章编号】 1003—6350（2019）19—2542—03

Sonographic appearance of fetal micrognathia in early pregnancy.
WEN Ying-hong, ZHEN Chao-jiong, CAOYun-qing, WEI Yan-ping. Diagnostic & Treatment Center, the First People’s Hospital of Foshan, Foshan 528000,Guangdong, CHINA
【Abstract】 Objective To explore the application value of the mandibular gap on the retronasal triangle sectionin screening fetal micrognathia during the first trimester. Methods The data of 10 fetuses during 11~13 + 6 gestationalweeks diagnosed as micrognathia at the First People's Hospital of Foshan from January 2014 to May 2018 were re-viewed, and their sonographic features were analyzed. Results A total of 10 fetuses during 11~13+ 6 weeks were diag-nosed as micrognathia. The mid-sagittal section of the face of 10 fetuses showed short mandible and chin retraction.Eight cases showed that the mandibular gap disappeared on the retronasal triangle section and was replaced by a strongecho of the bone. Two case showed severe micrognathia, and their retronasal triangle section failed to show the mandibleand failed to show the mandibular gap. Six of the fetuses also combined structural abnormalities in other parts. All caseswere confirmed after induction of labor. Conclusion Observing the mandibular gap on the retronasal triangle sectionhelps to diagnose micrognathia of the fetus during the first trimester.
      【Key words】 Micrognathia; First trimester; Mandibular gap; Retronasal triangle; Ultrasonography·短篇论著·doi:10.3969/j.issn.1003-6350.2019.19.028基金项目：2016年广东省佛山市医学类科技攻关项目(编号：2016AB002131)