Chronic Fascioliasis of Bovine; A Pathological Study in Kirkukabattoir

Abstract

Fascioliasis is a serious parasite infection that can source morbidity and death in a variety of animals, including cattle, sheep, and goats, in addition toextra domestic ruminants.The goal of the investigation was aimed to identify gross and microscopic lesions in cattle with chronic fascioliasis infection in the Kirkukabattoir.from January to March 2021, fifteen infected bovine livers of altered ages were collected from the Kirkuk abattoir and examinedgrossly.Gross inspectionshowedan enlarged bile duct, huge abscesses, migrational fibrosis on the visceral surface of the liver, and, and fibrosis of the bile duct after a longitudinal cut of the liver.Histopathologically, an extensive variety of liver lesions were found. The most prominent lesions were the formation of fibrous connective tissue around the intrahepatic bile ducts, in addition to hyperplastic lining epithelium of the bile duct with papillary projection.The bile pigment, atrophy, calcification, necrosis with filtration of immune cells, and nutmeg liver showed in the chronic stage of fascioliasis under microscopic examination. The conclusion of the current study results showed thatthe persistence of infection for long period without treatment leads to liver fibrosis and nutmeg liver.