Blastomyces dermatitidis pneumonia in a llama.

A 20-y-old female llama ( Lama glama) was euthanized after a history of chronic dyspnea and osteoarthritis. At autopsy, the lungs were covered by clear gelatinous material and expanded by firm, variably discrete, tan-white nodules up to 8 cm diameter containing tan-white, viscous material. The tracheobronchial lymph nodes were firm and enlarged up to 6 × 4 × 3 cm; the thoracic aorta and carotid arteries were lined by hard, tan-white, mineralized intimal plaques.

Identification of a Novel Renal Coccidian (Apicomplexa: Eimeriidae) from the Great-Horned Owl ( Bubo virginianus ), USA.

We diagnosed renal coccidiosis in two of five Great-horned Owls ( Bubo virginianus ) examined in eastern Tennessee, US, 2007-13. Histopathologic examination of the kidneys revealed multifocal mild-to-moderate dilation and epithelial hyperplasia of collecting ducts. Renal collecting duct epithelial cells contained intracytoplasmic microgametocytes, macrogametocytes, and sporulating and sporulated oocysts.

COX-2 and c-kit expression in canine gliomas.

Gliomas are among the most common primary neural tumours of dogs. Cyclooxygenase-2 (COX-2) and c-kit overexpression are associated with increased aggressiveness of gliomas and decreased survival in human beings. COX-2 is the inducible form of cyclooxygenase, which catalyzes prostaglandin formation and may increase tumour proliferation and angiogenesis.