TUMOKS 123 



Of other bones, the following have been reported as 

 actinomycotic : Sternum and ribs, vertebrae of the back and 

 neck. 



Describe actinomycosis of the pharyngeal cavity. 



These soft tumors may resemble a polypus, being 

 pedunculated, hanging from the mucous membrane ; are of 

 pea to egg size, or they may have a broad base and be of 

 fungoid shape. Similar neoformations are seen upon the 

 mucous membrane of the larynx, trachea, vagina, intestines 

 and nasal cavity. 

 Discuss actinomycotic lymph glands. 



Those most frequently involved are the subparotid and 

 submaxillary glands. Actinomycosis of lymph glands is 

 never primary, but always of metastatic — that is, secondary — 

 origin. The gland enlarges, is firm, oval or round, and 

 painless, varying in size. 



Actinomycotic salivary glands are also seen occasionally. 



Actinomycotic submaxillary lymph glands have been 

 seen in the horse. 



Discuss actinomycosis of the shin and suhcutis. 



More coimmonly seen about the head, udder, neck, 

 abdomen, etc. They are both primary or secondary, the 

 former arising from an infected skin wound, the latter from 

 deeply seated actinomycotic processes which have broken 

 through. They appear in the shape of nut to fist sized 

 tumors, or as soft, reddish, fungoid masses. Fistulous open- 

 ings may be present. Actinomycomata have been seen in 

 castration wounds of pigs and in the spermatic cord of oxen 

 and geldings. ; 



Discuss actinomycosis of the mammary gland. 



Those of the sow, where they are of tenest seen, appear, as 



