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Photographs and photomicrographs from a Great-horned Owl (Bubo virginianus) found dead in Arizona, USA

By National Wildlife Health Center
Photographs showing gross and microscopic lesion on pharynx and liver of great-horned owl.
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Detailed Description

Photographs and photomicrographs from a Great-horned Owl (Bubo virginianus) found dead in Arizona, USA. (A) Caseous material is present on the surface of the pharynx (arrows). (B) Multiple small tan foci are present in the liver, which is pale and moderately enlarged. (C) A focus of acute lytic necrosis in the liver (arrows). H&E stain. (D) An eosinophilic intranuclear inclusion is present in an intact hepatocyte (arrow). H&E stain.

Sources/Usage

Public Domain.