Puttemans Thierry, Delvigne Annick, Murillo Daniel
Imagerie Médicale, Hôpital Iris Sud, Site Etterbeek-Ixelles, Rue Jean Paquot 63, 1050 Brussels, Belgium.
J Clin Ultrasound. 2006 Oct;34(8):385-92. doi: 10.1002/jcu.20257.
To describe the appearance, anatomic position, and size of the normal adult epididymis and vas deferens using high-resolution sonography.
The sonographic appearance, anatomic position, and size of the epididymal head (EH), epididymal body (EB), epididymo-deferential loop (EDL), and vas deferens (VD) were evaluated in 112 consecutive infertile men (infertile group), and the data were compared with those from 84 consecutive men without history of infertility (reference group).
Compared with the testis, the EH was isoechoic, the EB hypoechoic, and the VD anechoic. In 88.4% of cases in the infertile group and 97.6% of cases in the reference group, the EH was located above the upper pole of the testis, with the EB lateral to the testis and the EDL below the lower pole of the testis. In 9% of cases in the infertile group and 6% of cases in the reference group, the EB was located posterior to the body of the testis, with the EDL inverted and the VD anterior to the ET. In 11.6% of cases in the infertile group and 2.4% of cases in the reference group, the epididymis was inverted, with the EH located below the lower pole of the testis. The mean (+/-SD) normal sizes were as follows: EH, 7.6 +/- 1.6 mm; EB, 3.2 +/- 0.8 mm; EDL, 7.7 +/- 1.3 mm; VD, 1.9 +/- 0.2 mm. No statistically significant differences in size were found between the 2 groups.
We describe the normal and variant appearance, position, and size of the adult epididymis and VD on high-resolution sonography.
使用高分辨率超声描述正常成年附睾和输精管的外观、解剖位置及大小。
对112例连续的不育男性（不育组）的附睾头（EH）、附睾体（EB）、附睾-输精管袢（EDL）和输精管（VD）的超声表现、解剖位置及大小进行评估，并将数据与84例无不育史的连续男性（参照组）的数据进行比较。
与睾丸相比，EH呈等回声，EB呈低回声，VD呈无回声。不育组88.4%的病例及参照组97.6%的病例中，EH位于睾丸上极上方，EB位于睾丸外侧，EDL位于睾丸下极下方。不育组9%的病例及参照组6%的病例中，EB位于睾丸体后方，EDL倒置，VD位于睾丸前方。不育组11.6%的病例及参照组2.4%的病例中，附睾倒置，EH位于睾丸下极下方。正常大小的均值（±标准差）如下：EH，7.6±1.6mm；EB，3.2±0.8mm；EDL，7.7±1.3mm；VD，1.9±0.2mm。两组之间在大小上未发现统计学显著差异。
我们描述了成年附睾和VD在高分辨率超声下的正常及变异的外观、位置和大小。
