rvIORHID ANATOMY 



197 



for the development of a new tubercle, the disease has become 



generalized.* 



It was formerly considered that when the lesions existed 

 in both of the large (abdominal and thoracic) cavities of the 

 body the disease was generalized. It is possible, however, 

 for it to be generalized when the lesions are restricted to the 

 organs of one cavity, as the secondary seeding with the bac- 



FiG. 42. A p/iotooraph of several tuhenulous ulcers in the intesline 



■ of a cow. 



teria that have escaped from a primary focus through the cir- 

 culation mav be restricted to the cavity in which the first 

 lesion developed. It seems better, therefore, to accept 

 Ostertag's views and classify local and generalized tuberculosis 



*The Federal meat inspection regulations state that animals affected 

 vv'ith '• extensive or generalized tuberculosis " are to be condemned. 



