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Year 2011 - Volume 31, Number 2
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Peribiliary cysts in an African lion (Panthera leo), 31(2):165-168
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ABSTRACT.- Lucena R.B., Fighera R.A. & Barros C.S.L. 2011. [Peribiliary cysts in an African lion (Panthera leo).] Cistos peribiliares em leão-africano (Panthera leo). Pesquisa Veterinária Brasileira 31(2):165-168. Departamento de Patologia, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil. E-mail:claudioslbarros@uol.com.br
The gross and histopathological aspects of peribiliary cysts in an adult African lioness (Panthera leo) are described. Grossly, all hepatic lobes contained numerous cysts filled with translucent fluid. Histologically it was observed that the cysts were located in the hepatic hilum and in the portal triads. Periodic acid-Schiff and Alcian blue stains, revealed the cysts to be lined by simple, non-mucinous, cuboidal or columnar epithelium. In immunohistochemistry staining all cells comprising this epithelium were positive for cytokeratin. The lioness died due to complications stemming from a pulmonary carcinoma and no clinical signs related to the hepatic lesion were observed, demonstrating that also in lions the peribiliary cysts occur as non-clinical disease associated lesions. |
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