1986 Volume 39 Issue 8 Pages 516-519
A 13-month-old Japanese ptarmigan (Lagopus mutus japonicus) died in the OmachiAlpine Museum after exhibiting yellowish watery diarrhea and listlessness.
Necropsy revealed a large number of white pinpoint foci in the liver and spleen. A large amount of cheesy exudate was seen around the right lobe of the liver and the epicardium. Numerous granulomas were seen in the liver, spleen and epicardium. Each granuloma had a necrotic center surrounded by giant cells and epithelioid cells.
Pseudomonas. aeruginosa was purely isolated from the liver, spleen, heart, and cheesy exudate. The disease was diagnosed as P. aeruginosa infection associated with granulomas.
