Page 583 - The Veterinary Laboratory and Field Manual 3rd Edition

520 Samuel Sharpe

Figure A2.5 Abdomen, cat. Acute inflammation. The last rib (•) and liver (*) can be seen on the left side
of the picture with loops of intestine (†) in the centre. Note abundant stands of tan fibrin (‡) covering the
serosal surface of the intestines. Note also the subtle finely granular texture of the intestinal serosa which
can in some cases be the only sign of fibrin exudation. See also Plate 46. Photo: courtesy of Dr J. Davies,
University of Calgary, Canada.

Figure A2.6 Heart, bovine. Acute inflammation: the right ventricle (‡) has been opened exposing the tricuspid
valve (†) which is largely effaced by a mass of inflammatory tissue, fibrin, and clotted haemorrhage which
extends into the right atrium (*). This is a characteristic appearance of vegetative valvular endocarditis. Bacteria
localize to the heart valve following a period of bacteraemia disrupting the endocardium and inciting an inflam-
matory process and blood clotting which produces the gross appearance. This should be differentiated from
post-mortem blood clots which often form in the heart but can be easily removed leaving an intact, glistening
endocardial surface. See also Online figure 4. Photo: courtesy of Dr C. Knight, University of Calgary, Canada.

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