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Photomicrographs from a Common Grackle (Quiscalus quiscula) found dead in Ohio

By National Wildlife Health Center
Photomicrographs from a Common Grackle showing lesions in pulmonary blood vessel and nematodes in brain and pulmonary artery.
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Detailed Description

Photomicrographs from a Common Grackle (Quiscalus quiscula) found dead in Ohio, U.S.A. H&E stains. (A) Longitudinal (arrow) and cross sections (arrowheads) of microfilariae in a pulmonary blood vessel. (B) Microfilariae (arrows) within a parabronchus. (C) Microfilaria (arrow) within the cerebellar parenchyma with no associated inflammation. (D) Adult filarial nematodes in brain ventricle.  (E) Adult filarial nematodes in the wall of the pulmonary artery.  (F) Higher magnification of adult filarial nematodes in the wall of the pulmonary artery.

Sources/Usage

Public Domain.