Reviewer: Mandolin Ziadie, M.D. (see Reviewers page)
Revised: 23 November 2011, last major update November 2011
Copyright: (c) 2003-2011, PathologyOutlines.com, Inc.
● Four or more umbilical cord vessels due to an extra artery or vein
● May be associated with fetal anomalies and maternal smoking
● Thought to originate from persistent umbilical veins or vitelline vessels
● Looping may cause artifactual supernumerary vessels and should be excluded on gross examination
End of Placenta > Umbilical cord > Supernumerary vessels
This information is intended for physicians and related personnel, who understand that medical information is often imperfect, and must be interpreted in the context of a patient's clinical data using reasonable medical judgment. This website should not be used as a substitute for the advice of a licensed physician.
All information on this website is protected by copyright of PathologyOutlines.com, Inc. Information from third parties may also be protected by copyright. Please contact us at [email protected] with any questions (click here for other contact information).