MAMMITIS. 



571 



The treatment consists simplj' in hygienic precautions, frequent 

 milking, emollient, sedative applications to the udder, and frequent 

 washing. As far as possible the use of milk catheters should be avoided. 



Boric vaseline and belladonna ointment may be recommended. In 

 very serious cases blood can be withdrawn from the jugular. This is 

 better than bleeding from the mammary vein, wliich always entails the 

 risk of thrombus formation. 



MAMMITIS. 



Under the heading " mamraitis" are included different forms of in- 

 flammation of the mammary tissue, whether such inflammation attack 

 the parenchyma of the gland or the interstitial tissue. Generally 

 the wdiole gland is invaded at the end of a few days, whatever 

 the point of origin, and the inflammation is therefore of a mixed 

 character. 



Mammitis has been recognised from very early times. In his 

 researches on " contagious mammitis " Nocard in 1884 showed that 

 infection was the principal factor in its evolution. 



Numerous classifications, based on the causes or on the pathological 

 anatomy of the condition, have beeir suggested ; but most appear too 

 rigid, and therefore, without discussing them, we confine ourselves to 

 giving the following resume : — 



Eainard (1845) . . 



Lafosse (1856) . . 

 Trasbot (1883) . . 



Saint Cyr (1874) 

 Violet (i.SSK) 



Lucet (1891) 



Lacteal engorgment. 

 Cellulitis of the udder. 



Mammitis . . 

 Mammitis . . 



Mammitis. . 



Primary mammitis (pro- 

 perly so-called) . . 



Symptomatic mammitis . 



Acute. 



Chronic. 



Acute. 



Chronic. 



Catarrhal. 



Phlegmonous or interstitial. 



Parenchymatous. 



( ( lalactogenous. 



I Lymphogenous. 



( Giilactogenous. 



I Lymphogenous. 



( Hsematogenous. 



i Lymphogenous. 



( Hiematogenous. 



I Lymphogenous. 



Acute 



Chronic . 



f Acute 



Chronic 



All these classifications are justified by the guiding ideas of the 

 writers, yet, as in every case of attempted systematisation, they have 

 the disadvantage of not being in entire agreement with clinical 



experience. 



For instance, the differences between catarrhal and parenchymatous 



