SYMPTOMS 



185 



.J^\ 



flank are often enlarged and hard. vSonietimes this condition 

 can be diagnosed positively by a rectal examination and the 

 discovery of the hard, nodular masses. Tuberculosis of the 

 liver does not give rise to obvious symptoms unless the dis- 

 ease is far advanc- 

 ed, in which case 

 jaundice may be 

 observed. 



In animals in 

 which the post- 

 pharyngeal lym- 

 phatic glands are 

 enlarged from tu- 

 berculosis, the 

 breathing is harsh 

 and noisy. In this 

 condition there is 

 sometimes difficul- 

 ty in swallowing, 

 and particles o f 

 chewed up food are 

 occasionally expel- 

 led from the mouth , 

 either voluntarily 

 when it is found 

 that they cannot be 

 swallowed conven- 

 iently, or by the 

 coughing they oc- 

 casion upon reach- 

 ing the pharynx. 

 These enlarged 

 glands may some- 



FiG. 32. Dorsal aspect of bovine lungs, (a-a') 

 right and left caudal lobes, (b-b') r. and I. ven- 

 tral lobes, {c-O first and second right cephalic 

 lobes, [c--) left cephalic lobe, (e) trachea, {.v x) 

 region most frequently involved in the earliest 

 stages of pulmonary tuberculosis. The lesions 

 at this stage are usually embedded in the lung 

 tissue {Smith). 



times be detected 



bv palpation accomplished by placing one hand on each side 

 of the throat above the larynx and then pressing from op- 

 posite sides. 



