Pathological Findings of Cholelithiasis in Two Horses

Abstract

Despite of being a relatively rare disease in horses, cholelithiasis is the most common cause of biliary obstruction in this species. Simultaneous intrahepatic and extrahepatic gallstones are the most frequent presentation. Usually, there are no clinical signs associated with this condition, although biliary obstruction could occur as a consequence. Two cases of cholelithiasis in horses, including gross and histopathological findings are described. In one of the cholelithiasis cases there was no association with clinical signs or cause of death, but in the other one, chronic loss of weight may have been caused by cholelithiasis.