Case Report: Pyogranulomatous Aspergillosis in an Endemic Formosan Blue Magpie (Urocissa caerulea)
摘要
Formosan Blue Magpie (FBM; Urocissa caerulea) is one of the endemic wildlife in Taiwan. A female FBM bird, 2-3 year-old, was found died of respiratory difficulty. Grossly, multifocal caseous nodules were obviously found in the lung and air sac. Microscopically, multifocal pyogranulomas were noted with fungal hyphaes existence in the lesions. Histochemical staining of affected lungs and air sacs was stained with periodic acid-Schiff (PAS) and Grocott methenamine silver nitrate (GMS), and immunohistochemical staining was performed using the antibody against Aspergillus spp. The staining revealed numerous dichotomously branched and septated fungal hyphaes in necrotic areas of the tertiary bronchi of the lungs. Aspergillus fumigatus was successfully cultivated on Sabouraud dextrose agar (SDA). The animal was diagnosed with aspergillosis infection, which is the first report of aspergillosis in endemic bird of FBM in Taiwan.