TUBERCULOSIS OF BONES AND ARTICULATIONS. 



701 



the vagina. Examination by means of the speculum is of great value 

 in diagnosing such lesions. On examining the parts through the 

 rectum, the walls of the uterus are found to be greatly thickened, 

 sometimes indurated, bosselated or totally deformed. 



The Fallopian tubes and ovaries may have attained enormous 

 dimensions, and the normal anatomy of the parts is greatly altered 

 both as regards dimensions and relations. 



The almost inevitable consequences of tuberculosis of the genital 

 organs are hypertrophy, induration or caseation of the subsacral 

 and sublumbar lym- 

 phatic glands. 



Udder.— Tuber- 

 culosis of the udder 

 may be primary or 

 secondary. When 

 the infection is slight 

 the results may es- 

 cape notice for weeks 

 or even months, the 

 patients appearing 

 to suiBfer only from 

 sub-acute or chronic 

 mammitis, while at 

 the same time the 

 milk preserves its 

 ordinary appearance. 

 In time, however, 

 the mammitis be- 

 comes aggravated, the infected regions are enlarged, and the secretion 

 becomes grumous, serous, curdled, and of a yellowish colour, after- 

 wards ceasing altogether. In some cases one quarter only is attacked, 

 though total mammitis is more common. 



These forms of tuberculous mammitis tend towards hypertrophy, 

 local hardening, and the formation of deeply-seated cavities contain- 

 ing pus, the gland itself sometimes acquiring enormous dimensions. 

 The retro-mammary lymphatic glands are invaded even before the 

 gland itself is seriously attacked. For a longer or shorter time the 

 udder may externally appear healthy, although on manual examina- 

 tion these lymphatic glands are found to be indurated and bosselated. 



Fig. 279. — Hypertrophic tuberculous mammitis. 



TUBERCULOSIS OF BONES AND ARTICULATIONS. 



Tuberculosis of the bones is seen only in young animals, and 

 chiefly affects the vertebral column and the bones of the head. The 



