80 S\V]XE PRAC'TICK 



upper jaw is very likely to produce injury to the buccal mucous 

 membrane. 



Symptoms : The affected mucous membrane is in the beginning- 

 tumefied and increased in redness, and later the surface becomes 

 coated by the accumulation of desc^uamated epithelium and mucus. 

 Gradually this surface coating loosens and sloughs as the inflam- 

 mation diminishes in intensity. The affected animals refuse to eat 

 or eat sparingly, and usually select soft foods. Although they may 

 attempt to chew hard substances, as a rule they drop them quickly to 

 the ground. Salivation is always present, and in extreme cases an 

 offensive odor may be detected. 



Treatment : The treatment consists in cleansing the affected parts 

 with antiseptics and applying an astringent, such as myrrh. The 

 affected animals should be given mucilaginous fluids, soft foods, and 

 a good supply of clean, cool water. 



Chronic catarrhal, stomatitis is caused by the continuous or pro- 

 longed action of some relatively mild irritant. 



Lesions : This condition is associated with fibrous proliferation 

 in the subinucosa, which in the early stages of the disease results 

 in tumefaction of the mucosa. Later the newly formed fibrous 

 tissue contracts, producing an irregular surface. There is also a 

 gradual atrophy of tlie mucosa and occasionally the cicatrized fibrous 

 tissue obstructs the mucous gland duets, thereby causing small reten- 

 tion cysts. 



Chronic catarrhal stomatitis is manifested by continuous limited 

 salivation and champing of the jaws. The treatment depends largely 

 upon the progress of the disease. In all cases the cause should be 

 determined and removed. Soft foods should be given, and mild 

 astringent antiseptic washes may be used. 



Phlegmonous stomotitis is relatively common in swine. It is usually 

 caused by a steptococcic infection of the submucosa. The condition 

 is usually general, the affected mucosa is intensely swollen and in 

 the beginning is scarlet red in color, later assuming a purplish hue, 

 and finally a dull gray, due to the accumulation of desquamated 

 epithelium, mucus, and pus. Patches of mucous membrane may 

 become necrotic and slough, leaving a red surface from which blood 

 escapes freely. The tumefaction may be so intense that the mouth 

 cavity becomes noticeably diminished, and the cheek mucous mem- 

 brane n?ay be forced between the teeth and lacerated during masti- 

 cation. 



