Skip to main content
Fig. 1 | BMC Veterinary Research

Fig. 1

From: Presence of Coxiella burnetii DNA in inflamed bovine cardiac valves

Fig. 1

Chronic bovine fibrinous endocarditis. a gross pathology showing two areas of endocardial inflammation. The largest lesion, which is located in the valve (V), is cut through thus exposing a central core of fibrous tissue (F) that is externally covered by fibrin and clots (arrow). A minor mural lesion is similarly covered by fibrin and a clot; b + c Photomicrographs of endocardial lesions showing a core of granulation tissue (G) that is externally bordered by a zone of suppurative inflammation (I). The surface of the lesions is covered by fibrin (F) in which multiple bacterial colonies are embedded (arrows). c A focus of calcification (C) is present on the surface, which is also covered by a layer of neutrophils. Such calcified foci are consecutively embedded first in the fibrin and later in the granulation tissue as the lesion continues to expand by superficial opposition of fibrin and organisation into fibrous tissue from the base. (H&E)

Back to article page