INFLAMMATION OF THE PAROTID GLAND. 

 PAROTITIS. 



Causes : traumatic ; calculus; grains; barley and other beards ; infecting 

 microbes. Symptoms : fever, dullness, buccal heat, salivation, difficult 

 mastication, swelling of gland and duct, protruded nose, stiff neck, foetor, 

 dyspnoea, facial paralysis, induration of gland, abccss. Diagnosis from 

 pharyngitis, abcess of guttural pouch or pharynegal glands ; from tumors. 

 Treatment: avoidance of causes; derivation ; astringent, antiseptic washes ; 

 wet antiseptic bandages to throat ; cool pultaceous diet. Open abscess and 

 di.sinfect. For induration deobstruents. For sloughing antiseptics. 



This may be caused by traumatism, such as incised })unctured 

 or bruised wounds. Wounds inflicted b}' the ^oad, by horns, 

 and even by the yoke in cattle must be looked on as factors. It 

 occurs from obstruction of the salivary ducts b}' calculi, or by 

 grains, seeds, or pebbles introduced from the mouth ; from their 

 irritation by the beards of barley and other plants (brome, rye, 

 wheat, etc.); and from the localization in the gland of .specific 

 inflammations like .strangles, pyaemia, canine distemper, tubercu- 

 losis and pharyngitis. In most of these cases infective microbes 

 are prominent factors. They enter with penetrating bodies from 

 the .skin ; the}' extend throtigh the weakened and debilitated 

 tissties in brui.ses ; the}' pen>itrate the Stenonian duct with the 

 various foreign bodies from tht mouth ; irrespective of foreign 

 objects they make their way up the duct by continuous growth 

 from the buccal orifice ; in case of calculus or other obstruction 

 their exten.sion is favored by tlie local congestion and debility 

 and by the stagnation of the saliva above the point of arrest. 

 When present these microbes even favor the deposition of the 

 salivary salts and formation and increa.se of calculi so that the af- 

 fection ma}' advance in a vicious circle, the microbes favoring 

 calculus and the calculus favoring tlie increase of microbes. 



Synipfonis. In the horse in particular there may be premoni- 

 tory symptoms of fever, dullness, heat of the mouth, ptyalism, 

 slow and imperfect mastication, and the retention of food in the 

 cheeks. 



The Stenonian duct becomes swollen and painful. The 

 parotid becomes hard, hot, tender, and is surrounded by a .softer 



