title: Unilateral hydrosalpinx and absence of the infundibulum in a mare.
abstract: Both ovaries and associated oviducts were removed from a mare via colpotomy. The right oviduct was greatly enlarged and filled with fluid. No infundibulum could be identified; rather, the blind distended end of the oviduct adhered to the ovary at the ovulation fossa. Two cysts were attached to the exterior of the oviduct a few centimeters from the fossa. Histologic examination of the oviduct and cysts revealed a dilated lumen, a decreased infolding of the wall into the lumen, and a lack of a defined muscle layer. Congenital absence of the infundibulum resulting in a blind ampullar terminus is proposed as the cause of the hydrosalpinx.
authors.affiliation: Section of Reproductive Studies New Bolton Center School of Veterinary Medicine University of Pennsylvania Kennett Square, PA 19348 USA.
authors.forename: K
authors.initials: K
authors.lastname: Hinrichs
authors.forename: R M
authors.initials: RM
authors.lastname: Kenney
authors.forename: J P
authors.initials: JP
authors.lastname: Hurtgen