PRINCIPLES OF VETERINARY SURGERY 



569 



lines, mercur}'-, arsenic, iodides, and certain tinctures, — thuja, 

 condurago and Hydrastis, — were used internally. At differ- 

 ent times, as a balm to our conscience, we have tried tinc- 

 ture of thuja, of which we had many favorable reports, but 

 in all of our experiments the effort was fruitless. 



The only effectual intervention is surgical ablation, re- 

 sorted to as early as possible, in fact, as soon as the nature 

 of the growth has been determined. In the dissection, the 

 sound tissue at some distance from the tumor should be 



Fig. 74. 

 Limited Zone of a Cutaneous Epithelioma, a. Tumor Perfectly Developed. 

 Cylindrical Epithelium Traversed with Epidermic Globules, b. Se- 

 baceous Follicle Enlarged. Epidermic Cones Extending 

 into the Depths (150 Diameters). 



included, and if the growth is located in a mamma, the en- 

 tire gland, and even its contiguous glands, should be ab- 

 lated. They sometimes recur, which event will necessitate 

 a second operation. Surgical treatment is never contra- 

 indicated (in animals) except when generalized, or when 

 important organs would be sacrificed. 



3. CARCINOMA. — The considerations mentioned with 

 regard to epithelioma may, from a clinical standpoint, be ap- 



