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Related Experiment Videos

Persistent right umbilical vein: an ominous prenatal finding?

P Jeanty1

  • 1Department of Diagnostic Imaging, Vanderbilt University Medical Center, Nashville, TN 37232-2675.

Radiology
|December 1, 1990
PubMed
Summary

Persistent right umbilical vein is a rare anomaly. This condition is often linked to serious fetal malformations, but its ultrasound appearance is easily identifiable, suggesting its use as a screening tool.

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Area of Science:

  • Fetal Medicine
  • Medical Imaging
  • Congenital Anomalies

Background:

  • Persistent right umbilical vein (PRUV) is a rare congenital anomaly, with limited documented cases since 1826.
  • This condition can occur as a replacement of the normal left umbilical vein or as an additional vessel.
  • PRUV is frequently associated with a spectrum of fetal malformations, ranging from minor to lethal.

Purpose of the Study:

  • To describe the ultrasound characteristics of PRUV.
  • To highlight the association of PRUV with fetal malformations.
  • To propose PRUV as a potential indicator for further fetal anomaly screening.

Main Methods:

  • Review of cases with persistent right umbilical vein.
  • Ultrasound examination to identify characteristic anatomical features.
  • Correlation of PRUV findings with associated fetal anomalies.

Main Results:

  • PRUV is an uncommon finding, with few cases reported historically.
  • A significant proportion of fetuses with PRUV exhibit associated malformations, with only a minority being anomaly-free.
  • Ultrasound visualization shows the intrahepatic umbilical vein lateral to the gallbladder and a curved portal vein towards the stomach.

Conclusions:

  • The ultrasound appearance of PRUV is distinct and readily detectable in standard fetal scans.
  • PRUV's frequent association with other anomalies warrants its consideration as a marker for detailed fetal assessment.
  • Early identification of PRUV can prompt further investigation for associated congenital defects.

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