PMC4505787_01
Traditional and Doppler ultrasound assessment showed only one umbilical artery (arrows).
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The morphology ultrasound at 20 weeks of gestation on the fetus showed the presence of a single umbilical artery ( Figure 1) and a cystic mass (dimensions = 29mm x 25mm) at the root of the umbilical cord, connecting to the urinary bladder and no bowel contents enclosed within ( Figure 2A and Figure 2B).
Umbilical cord cyst images.. 
A: Umbilical cord cyst first detected at 20 0/7 weeks of gestation (arrow).
B: Umbilical cord cyst was confirmed and a clear image of the connection between the bladder and the umbilicus was found at 22 5/7 weeks of gestation.
C: Doppler velocimetry demonstrated flow around the cyst.
D: Doppler ultrasound examined the size of the cyst.
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The morphology ultrasound at 20 weeks of gestation on the fetus showed the presence of a single umbilical artery ( Figure 1) and a cystic mass (dimensions = 29mm x 25mm) at the root of the umbilical cord, connecting to the urinary bladder and no bowel contents enclosed within ( Figure 2A and Figure 2B). Doppler velocimetry revealed flows around this cyst ( Figure 2C).
PMC4505787_02