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目的探讨胎儿尿道下裂产前超声声像图特征及超声诊断价值。方法应用二维及三维超声对6 405例胎儿进行系统超声检查,对疑有胎儿生殖器异常的病例行多角度扫查,同时对伴发畸形进行筛查,并于引产后或生后结果进行对比分析。结果 8例产前诊断为尿道下裂的病例均在产后证实;1例产前疑似病例产后确诊为阴茎体型尿道下裂;另发现7例漏诊,1例误诊。结论产前超声能对严重胎儿尿道下裂进行明确诊断;对轻型胎儿尿道下裂漏误诊率较高,诊断应慎重。
Objective To investigate the prenatal ultrasonographic features and diagnostic value of fetal hypospadias. Methods A total of 6 405 fetuses underwent systematic ultrasound examination with two-dimensional and three-dimensional ultrasonography. Multi-angle scanning was performed on suspected cases of fetal genital abnormalities. At the same time, the patients with congenital malformations were screened and compared after or during labor analysis. Results Eight prenatal diagnoses of hypospadias were confirmed after delivery. One case of prenatal suspected postpartum was diagnosed as penis type hypospadias. Seven cases missed diagnosis and one case was misdiagnosed. Conclusions Prenatal ultrasound can confirm the diagnosis of severe fetal hypospadias. The misdiagnosis rate of hypospadias in light fetuses is high, and the diagnosis should be carefully performed.