The Yolk Sac of the Equine Placenta. Its Remnant and Potential Problems

Laura Vilaregut; Marco Lores; Sandra Wilsher

doi:10.1016/j.jevs.2020.103322

The Yolk Sac of the Equine Placenta. Its Remnant and Potential Problems

J Equine Vet Sci. 2021 Jan:96:103322. doi: 10.1016/j.jevs.2020.103322. Epub 2020 Nov 16.

Authors

Laura Vilaregut¹, Marco Lores¹, Sandra Wilsher²

Affiliations

¹ Sharjah Equine Hospital, Sharjah, UAE.
² Sharjah Equine Hospital, Sharjah, UAE. Electronic address: sandrawilsher@hotmail.co.uk.

PMID: 33349412
DOI: 10.1016/j.jevs.2020.103322

Abstract

This review details the current state of knowledge about the equine yolk sac and its remnant (YSR) in the pregnant mare, which, incidentally, is the only animal species known to exhibit large and/or ossified YSR. It also describes the clinical significance of the YSR and details a case of a strangulating YSR that caused fetal death and abortion.

Keywords: Abortion; Embryo development; Mare; Umbilical cord; Yolk sac.

Publication types

Review

MeSH terms

Abortion, Veterinary
Animals
Female
Horse Diseases* / diagnosis
Horses
Placenta
Pregnancy
Yolk Sac* / diagnostic imaging