![A case of prenatal diagnosis of single umbilical artery due to thrombosis diagnosed by the ultrasound finding of “wink-sign” A case of prenatal diagnosis of single umbilical artery due to thrombosis diagnosed by the ultrasound finding of “wink-sign”](https://www.degruyter.com/document/doi/10.1515/crpm-2020-0002/asset/graphic/j_crpm-2020-0002_fig_002.jpg)
A case of prenatal diagnosis of single umbilical artery due to thrombosis diagnosed by the ultrasound finding of “wink-sign”
![Figure 2 | Detection of Single Umbilical Artery in the First Trimester Ultrasound: Its Value as a Marker of Fetal Malformation Figure 2 | Detection of Single Umbilical Artery in the First Trimester Ultrasound: Its Value as a Marker of Fetal Malformation](https://static-02.hindawi.com/articles/bmri/volume-2014/548729/figures/548729.fig.002.jpg)
Figure 2 | Detection of Single Umbilical Artery in the First Trimester Ultrasound: Its Value as a Marker of Fetal Malformation
![Tessa Davis on Twitter: "The cord starts off life as the yolk stalk, containing the vitelline duct, fused to the body stalk containing a pair of umbilical arteries, a single umbilical vein + Tessa Davis on Twitter: "The cord starts off life as the yolk stalk, containing the vitelline duct, fused to the body stalk containing a pair of umbilical arteries, a single umbilical vein +](https://pbs.twimg.com/media/EtSM2ErWYAM1QPS.png)
Tessa Davis on Twitter: "The cord starts off life as the yolk stalk, containing the vitelline duct, fused to the body stalk containing a pair of umbilical arteries, a single umbilical vein +
Newmomsforum - Let's talk about babies who have two vessel cords, also known as SUA (Single Umbilical Artery). Typically, an umbilical cord has two arteries and one vein (left side pic).
![Prenatal sonographic diagnosis of single umbilical artery: Emphasis on the absent side and its relation to associated anomalies - ScienceDirect Prenatal sonographic diagnosis of single umbilical artery: Emphasis on the absent side and its relation to associated anomalies - ScienceDirect](https://ars.els-cdn.com/content/image/1-s2.0-S1028455914000709-gr1.jpg)
Prenatal sonographic diagnosis of single umbilical artery: Emphasis on the absent side and its relation to associated anomalies - ScienceDirect
![Prenatal diagnosis of Type II single umbilical artery (persistent vitelline artery) in a normal fetus - Gámez - 2013 - Ultrasound in Obstetrics & Gynecology - Wiley Online Library Prenatal diagnosis of Type II single umbilical artery (persistent vitelline artery) in a normal fetus - Gámez - 2013 - Ultrasound in Obstetrics & Gynecology - Wiley Online Library](https://obgyn.onlinelibrary.wiley.com/cms/asset/8c25b2f2-d082-4e86-8b2c-1cb8f7f2334c/uog12325-fig-0001-m.jpg)
Prenatal diagnosis of Type II single umbilical artery (persistent vitelline artery) in a normal fetus - Gámez - 2013 - Ultrasound in Obstetrics & Gynecology - Wiley Online Library
![Antenatal scan concerns. Single umbilical artery, antenatal hydronephrosis and others. Dr Sridhar K - YouTube Antenatal scan concerns. Single umbilical artery, antenatal hydronephrosis and others. Dr Sridhar K - YouTube](https://i.ytimg.com/vi/DBGok5RLsis/maxresdefault.jpg)
Antenatal scan concerns. Single umbilical artery, antenatal hydronephrosis and others. Dr Sridhar K - YouTube
![WK 6 L 2 Single umbilical artery Ultrasound Atlas | GLOWM | Ultrasound, Ultrasound sonography, Ultrasound technician WK 6 L 2 Single umbilical artery Ultrasound Atlas | GLOWM | Ultrasound, Ultrasound sonography, Ultrasound technician](https://i.pinimg.com/600x315/9a/c0/2f/9ac02fcba2b523a7caba8de1f8135300.jpg)