Abstract
Background: Hepatic lesions in non-domestic felids are poorly characterized. The present study reports multiple hepatic peribiliary cysts in 9 out of 32 lions (Panthera leo) at Bannerghatta Biological Park, Bengaluru. Methods: The animals were presented for necropsy after the history of clinical signs of lethargy, anorexia, weakness, debilitated body conditions and all animals are in old age (between 15 to 25 years old). Systematic necropsy with gross and histopathological examination was carried out. Result: Post-mortem examination grossly revealed multiple cysts in liver (varying in each case) with the cystic masses filled with clear fluid, sometimes mixed with bile. A diagnosis for the presence of spontaneous peribiliary cysts was made on the basis of gross and microscopic lesions. Histologically, the cysts were surrounded and composed of compact collagenous tissue. The inner cystic single layer resembled biliary mucosa and composed of columnar epithelial lining, while the submucosa was composed of connective tissue with loss of hepatic cord structure.
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