Unilateral hydrosalpinx and absence of the infundibulum in a mare.
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.
Hinrichs
K
K
Section of Reproductive Studies New Bolton Center School of Veterinary Medicine University of Pennsylvania Kennett Square, PA 19348 USA.
Kenney
R M
RM
Hurtgen
J P
JP