258 



SWINE PRACTICE 



DILATATION" 



Acute dilatation of the heart has been observed in fat hogs in which 

 sudden death occurred. This condition is probably the result of 

 fatty changes in the myocardium. 



PERICARDITIS 



Pericarditis, both acute and chronic, fibrinous and purulent, occurs 

 in relation with hog cholera, swine plague, erysipelas, tuberculosis 



Halves of a 



sectioned 



echinococci 



Fig. 64. Hog heart with echinococci. (Ostertag.) 



and rheumatism and more rarely as a primary condition. A few cases 

 of traumatic pericarditis have been observed in swine. Cases of peri- 

 carditis are rarely diagnosed clinically because of the difficulty of 

 making a careful examination of the heart. 



TUMORS 



Various tumors have been observed upon the pericardium and also 

 in the myocardium. They 'are of no clinical significance, but are of 



