514 PRINCIPLES OF VETERINARY SURGERY 



these lesions must be classed under two heads: 1st. When 

 the tumor is slightly or not at all adherent to the deep tis- 

 sues on which it is fixed with a narrow base, the method to 

 recommend is total extirpation. The neoplasm is detached 

 from the structures on which it rests by dissection. If nests 

 of actinomyces exist on the outside of the capsule, the fibrous 

 zone on which they are lodged must be extirpated and the 

 wound cauterized with tincture of iodine. The edges of the 

 wound may then be reunited with sutures. 2nd. When the 

 tumor rests in deep tissues, on a large and adherent base, 

 its total extirpation might create a considerable wound, and 

 it would be difficult to define the limits between the healthy 

 and the infected zones. In this case, it is advisable to 

 make an incision into the tumor, curette the interior, stufif 

 it full of cotton soaked in tincttu'e of iodine, and then suture 

 the wound. In forty-eight hours the plug is renewed. After 

 eig"ht clays cicatrization is well on its way and the cure is 

 complete in three to four weeks. In no case is it necessary 

 to curette beyond the limits of the fibrous capsule which 

 constitutes aii isolating envelope. 



It is interesting to note in conclusion that iodide of po- 

 tassium has no direct action on the actinomyces. In fact, 

 Nocard, Dor, Dubreuilh and Berard have been able to cul- 

 tivate it in a nutritive media containing one per cent of 

 iodide of potassium. This medicament, therfore, acts by 

 modifying the nutrition of the cellular elements and trans- 

 forming the chemical phenomena. The iodide imparts a fresh, 

 vital energy to the tissues, which enables them to struggle 

 victoriously against the parasite. 



PORCINE ACTINOMYCOSIS. 



After the ox, the hog is the animal most frequently at- 

 tacked. The udder, the tonsils and the muscles are the or- 

 gajis in which the fungus settles by preference. 



