Acute left-sided heart failure, bovine

Acute left-sided heart failure, bovine

The entire lung is grossly enlarged in this bovine necropsy sample, with impressions of the ribs visible. Intralobular spaces are apparent, suggesting pulmonary edema. With left-sided cardiac failure from Histophilus somni–induced myocardial infarction in the papillary muscle, pulmonary congestion and edema result, as shown here.

Courtesy of Dr. Eugene D. Janzen.

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