CIRCULATORY ORGANS 



259 



interest to inspectors, as the presence of malignant tumors is con- 

 sidered sufficient evidence for condemnation. 



PiVRASITES 



The pericardium rarely harbors the cystic form of the Tsenia 

 echinoeoccus, but Cysticercus cellulosse is' of common occurrence in 



Fig.. 65. Heart with tuberculous proliferations on the outer surface. 



(Ostertag.) 



the myocardium of swine. The lesion has the same general appear- 

 ance as it does in voluntary striated muscle. Sarcosporidiosis is not 

 uncommon in the heart muscle of swine. 



Acute pericarditis is characterized by hyperemia and hemorrhage. 



Endocarditis has been observed by inspectors and in diagnostic 

 autopsies, but the disease is not ordinarily recognized by the clinician. 



