Acute Manimitis 947 



when compared with an adjacent healthy quarter. The intensity 

 of heat is not indicative of the seriousness of the inflammation 

 within the gland. The inflammatory processes may be chiefly 

 taking place in the central portion of the gland, and the skin 

 may be but slightly involved. While the presence of heat may 

 aid in the diagnosis, it is of comparatively little value as an aid 

 to prognosis. 



The pain in the inflamed gland shows every possible variation 

 in intensity. As in the case of heat, so the degree of pain does 

 not reveal the seriousness or extent of the malady. As a general 

 rule, the pain is most marked upon pressure when the disease is 

 largely concentrated in or about the teat, that is, when the disease 

 most seriously involves the more superficial, sensitive portions 

 of the gland. There may be a deep-seated inflammation of the 

 gland, which may be freely palpated without causing evidence 

 of great pain. When necrosis occurs in any part of the gland, 

 sensation in that portion necessarily ceases., 



The redness of the tissues is usually in harmony with the de- 

 gree of heat and pain. When the inflammation is at all super- 

 ficially located, the redness is usually very intense, and in marked 

 contrast to the color of the adjacent healthy quarters. When 

 gangrene occurs, and involves the skin, that portion which is 

 gangrenous assumes a necrotic-black or necrotic-green hue, and 

 the epidermis may slip off upon touch, exposing the naked skin. 



Swelling constitutes one of the most prominent and important 

 local symptoms. At the very beginning of the disease, the swell- 

 ing is usually quite evident to both sight and touch. It becomes 

 especially marked when the healthy quarters of the gland have 

 been milked out. Upon manipulation, the diseased quarter is 

 found to be more or less extensively enlarged, sometimes to double 

 the size of the corresponding normal quarter when filled with 

 milk. There is, however, a somewhat definite limit to the rapid 

 swelling of the gland, owing to the very inextensible gland cap- 

 sule. As the inflammation continues, the capsule may become 

 slowly increased to an enormous size. 



There are variations in the character of the swelling,- depend- 

 ent somewhat upon the chief center of the disease and the viru- 

 lence of the -infecting agent. When the inflammation is deep- 

 seated, the external appearances of swelling may consist very 

 largely of edema, which appears subcutaneously about the upper 



