URO-GENITAL SYSTEil 



179 



Lesions.— Escai>ed blood into the uriniferous tubules may be de- 

 tected by examination of the urine, which, by the way, is very in- 

 frequently done. The urine will be discolored with hemaglobin and 

 will contain blood casts. Kenal-tissue hemorrhages may be extensive 

 or limited, but rarely is extensive extravasation observed in the 

 kidney. Small-tissue hemorrhages, particularly petechial hemor- 

 rhages, are of common occurrence in the kidney of swine affected 





Fig. 36. 



HEMOEKHAGic KiDMEY — HOG CHOLERA. A, glomervile; B, narmai 

 kidney tissue; C, hemorrliagic petechia. 



with hog cholera. Such hemorrhages have been observed in the 

 kidney of otherwise apparently healthy swine in which no other 

 lesions of. cholera could be detected, and the blood from these hogs, 

 when injected into healthy, susceptible pigs, failed to produce evi- 

 dence of hog cholera. These hemorrhages were not numerous; some- 

 times only a few could be recognized by a careful examination; 

 their exact relation has not been discovered. The petechial hemor- 

 rhage of cholera merely evidences a vascular disturbance. 



