128 PEINOIPLES OF VETEBINAEY SURGERY 



healthy tissues to prevent recurrence. In case the mammary 

 gland is involved, it is best to amputate the whole gland. 

 The same is done with the scirrhous cord. Those cases where 

 a multiple hotryomycosis is present, are operated from time 

 to time, as it would be out of the question to remove all 

 neoformations in one sitting. More recently medication with 

 iodide of potassium and external applications or injections of 

 tincture of iodine are reported to have given very satisfactory 

 results. 



TUBERCULOSIS. 



What is tuberculosis ? 



An infectious disease due to the presence of the bacillus 

 of tuberculosis in the tissues of the body. 



Is tuberculosis of the domestic animals of much surgical 

 interest f 



It is not, for various reasons. First, tuberculous disease 

 of the external organs of animals is not of frequent occur- 

 rence. Second, those operations of great value in man, as, for 

 instance, resection of' a tubercular joint, are not to be thought 

 of in animals. Third, those animals where tuberculosis is 

 more frequently encountered (ox, swine) are for slaughter, 

 the tuberculous lesions exhibited by them being either of a 

 localized, external description, and then of little practical 

 moment, or the lesions are secondary and the result of 

 generalized tuberculosis, in which case they are incurable. 



Which forms of tuberculosis are of practical surgical interest f 

 Tuberculosis of the mammary gland, lymph glands, skin 

 and subcutis, mucous membranes, bones and joints, muscles, 

 eye, testicles, brain and spinal cord. 



