PAROTITIS. 



25 



or a solution of tannin, etc., may be applied on the ulcerations with 

 care. Aromatic tincture, the tincture of aloes or myrrh, and 

 spirits of cochlearia, applied with a brush, have given good results 

 Decayed or loose teeth must be extracted. 



If septic infection already exists, the disease defies all treatment. 

 Cauterization of the affected regions (with chloride of zinc, acetate 

 of aluminum) cannot prevent the fatal termination. 



PAROTITIS: INFLAMMATION OP THE PAROTID 



GLAND. 



This disease, also common in man, is still designated in our 

 animals by the vulgar name of "mumps." Its bibliography in 

 veterinary science is very meagre; there exist but vague and 

 incomplete descriptions of this disease, and this deficiency still 

 remains to be remedied by statistics of well-known cases. 



Etiology. The following forms of parotitis may be distin- 

 guished : 



1. Traumatic parotitis, due to some mechanical lesion. It 

 belongs to the field of surgery. 



2. Idiopathic essential parotitis , produced by a miasmatic, con- 

 tagious, infectious agent. It is an epizootic disease. The con- 

 tagious parotitis of the goat, observed by Franze, as well as that 

 mentioned by Hertwig on the dog, and Schussele on the dog and 

 cat, are all similar to mumps in man. The pathology of this 

 form of parotitis is not yet strictly determined; the infectious 

 agent undoubtedly reaches the gland either through the blood, 

 or, which is more likely, through the mouth, in ascending Stenon's 

 canal. 



3. Parotitis produced by inflammatory extension. An encysted 

 salivary calculus can become the cause of a parotitis. Toussaint 

 has described a parotitis determined by the extension of a stom- 

 atitis along Stenton's canal through a largely dilated infundibulum. 

 In glanders, angina, and distemper of dogs, the inflammation may 

 spread from a neighboring tissue surrounding the parotid gland. 



4. Metastatic parotitis, happening during pyemia, or septicemia. 



6. Actinomycotic parotitis, due to Actinomyces hovis. It consti- 

 tutes a common variety of actinomycosis, and is observed in an 

 epizootic form. 



