目的:探讨产前超声筛查对诊断胎儿阴茎前阴囊的声像图特征及临床价值.方法:随机选取2013年2月至2016年3月于我院行产前超声检查时疑似胎儿阴茎前阴囊的21例孕妇,所有研究对象均接受产前超声筛查,首先实施二维超声检查,后实施三维超声检查.对21例孕妇进行随访或引产,分析二维超声诊断及二维超声与三维超声联合诊断准确度及阴茎前阴囊声像图特征.结果:本组21例中胎儿阴茎前阴囊共17例,阴茎短小2例,女性假两性畸形2例;二维超声检出9例阴茎前阴囊,诊断准确度为52.94％(9/17);联合诊断检出16例阴茎前阴囊,诊断准确率为94.12％(16/17),两种诊断方式诊断准确率比较,差异有统计学意义(x2=5.440,P＜0.05);胎儿阴茎前阴囊具有典型声像图特征,其外生殖器形态异常,阴茎短小且下弯,阴囊分离,阴茎处于分离阴囊下方或中间.结论:胎儿阴茎前阴囊具有典型声像图特征,可通过产前超声筛查对阴茎前阴囊予以诊断,且联合采用二维超声及三维超声技术可有效提高诊断准确度,为临床干预方案的及早制定提供可靠依据,具有推广价值.%Objectives:To investigate the sonographic features and clinical value of prenatal ultrasonographic on the diagnosis of 17 fetal penile anterior scrotal.Methods:From February 2013 to March 2016,21 pregnant women with suspected fetal penile anterior scrotum in our hospital were subjected to prenatal ultrasonography.Two-dimensional ultrasound examination and three-dimensional ultrasound examination were done successively.21 pregnant women were followed up or induced labor.Two-dimensional uhrasound combined with three-dimensional ultrasound diagnostic accuracy and penis anterior scrotal sonographic features were analyzed.Results:There were 17 cases of penile anterior scrotum,2 cases of short penis and 2 cases of female pseudohermaphroditism in the 21 cases.There were 9 cases of anterior penis scrotum checked out by two-dimensional ultrasonography,and the diagnostic accuracy was 52.94％ (9/17).There were 16 cases of penile anterior scrotum checked out by the combined diagnosis,and the diagnostic accuracy was 94.12％ (16/17).There were significant differences in diagnostic accuracy between the two diagnostic modalities (x2 =5.440,P ＜ 0.05);fetal penile anterior scrotum had typical sonographic features,including the external genitalia abnormalities,penis short and curved,scrotum separation and the penis located below or in the middle of the isolated scrotum.Conclusion:Fetal penile anterior scrotum has typical sonographic features and it can be diagnosed by prenatal ultrasonography.Two-dimensional ultrasound combined with three-dimensional ultrasound can improve the diagnostic accuracy,provide a reliable basis for the early formulation of clinical intervention program,with the value of promotion.
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