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Histopathological diagnosis of avian tuberculosis and aspergillosis in a Snow goose  

Yhee, Ji-Young (College of Veterinary Medicine, Konkuk University)
Kim, Kyoo-Tae (Wild Animal Hospital, Daejeon Zoo Land)
Yu, Chi-Ho (College of Veterinary Medicine, Konkuk University)
Kim, Jong-Hyuk (College of Veterinary Medicine, Konkuk University)
Cho, Sung-Whan (College of Veterinary Medicine, Chungnam National University)
Lyoo, Young-Soo (College of Veterinary Medicine, Konkuk University)
Kim, Tae-Jong (College of Veterinary Medicine, Konkuk University)
Sur, Jung-Hyang (College of Veterinary Medicine, Konkuk University)
Publication Information
Korean Journal of Veterinary Research / v.47, no.4, 2007 , pp. 443-447 More about this Journal
Abstract
A 7-year-old, female snow goose (Anser caerulescens hyperboreus) with history of decreased activity for 2 month died in Daejeon Zoo Land in September 2006. At necropsy, granulomatous pneumonia and hepatomegaly with multiple cysts were observed. Small masses were found in the spleen. Microscopically, fibrinous pneumonia distributed in most of the lung lobe with pulmonary edema and congestion. Especially, granulomatous inflammation with numerous multinucleated giant cells was observed around the dilated bronchi. To confirm the diagnosis, acid-fast (Ziehl-Neelsen method) and periodic acid-Schiff (PAS) staining was performed. Acid-fast staining showed red bacterial colony indicating tuberculosis. PAS staining was also positive enough to diagnose aspergillus spp. co-infection that was an opportunistic fungi occurring in immuno-compromised animals. Based on the above results, we confirmed that the case submitted was diagnosed as avian tuberculosis.
Keywords
acid-fast stain; aspergillosis; avian tuberculosis; PAS stain; snow goose;
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