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CASE 3.—Post-mortem examination: Body well
nourished. The brain and lungs were healthy. The pericardium
was much distended by six ounces of reddish serum and a
clot, nine ounces and a half in weight, completely
surrounding the heart; the right auricle was thinned
towards its appendix; the lining membrane of the left
auricle was pale and roughly areolated; the cardiac valves
were healthy. The aorta was congested and atheromatous, as
were the great vessels arising from its arch. On the
posterior surface of the aorta, about two inches from the
semilunar valves, was an aneurismal tumor with a cavity as
large as a black walnut, communicating by a minute valvular
opening with the pericardium.—