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Characterization of vitelline vessel remnant circulation in the umbilical cord.

Placenta

August 2021

Department of Pathology & Laboratory Medicine, Alberta Children's Hospital, Alberta Precision Laboratories and the University of Calgary Cumming School of Medicine, 28 Oki Drive NW, Calgary, Alberta, T3B 6A8, Canada; Department of Pediatrics, Alberta Children's Hospital and the University of Calgary Cumming School of Medicine, 28 Oki Drive NW, Calgary, Alberta, T3B 6A8, Canada. Electronic address:

The vitelline circulation normally regresses by about 10 weeks gestation. Vitelline vessel remnants (VVRs) are found in approximately 4-11% of umbilical cords. While these remnants retain an active fetal circulation, this has never been studied.

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