MORBID ANATOMY 65 



and trampled by their companions. They shrink often to 

 nearly half their normal weight. There is usually a fluid dis- 

 charge from the bowels of a very offensive odor during the 

 last few days. The goat groans occasionally and the head is 

 usually bent around to one side. Death follows in from eight 

 days to ten weeks. Recoveries have not been observed. The 

 young are reported to be more susceptible to the disease than 

 the older animals. 



§ 60. Morbid anatomy. Emaciation and anemia are 

 the most striking lesions. The lungs usually contain areas of 

 pneumonia. Their surface is mottled by areas of congestion 

 and iron gray patches. On section these areas show a frothy 

 mucus in the bronchioles. The heart mu.scle is pale, dull, soft 

 and flabby. Inflamed hemorrhagic areas may appear on the 

 epicardium. Sometimes they are present in the endocardium 

 especially that lining the ventricles. The pericardium is 

 slightly thickened and usually contains a small quantity of 

 blood-stained fluid. The gall bladder is frequently distended 

 with a pale-yellow watery bile. The liver appears to be unaf- 

 fected. The kidneys are anemic and softened. The cortex is 

 pale and contrasts strongly with the dark pyramids. The 

 capsule is easily removed. The spleen appears to be atrophied 

 and indurated, the fibrous portions exceeding the spleen pulp. 

 The spleen may be attached to the diaphragm or neighboring 

 organs by adhesions. The mucosa of the intestines gives the 

 appearance of a chronic catarrh associated with necrosis of the 

 mucosa. 



The microscopic study showed the terminal bronchioles 

 and alveolar passages to have swollen walls and to contain 

 various amounts of mucus and desquamated cells as a result 

 ot the catarrhal inflammation. The blood vessels in the inter- 

 alveolar tissue are distended and surrounded by migrated 

 leucocytes. The kidneys show a catarrhal or parenchymatous 

 nephritis with the most pronounced changes occurring in the 

 cortex. The intercapsular space is dilated and contains an 

 albuminous exudate. The convoluted tubules show the epi- 

 thelium to be swollen and granular and occasionally desqua- 



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