336 TUMORS. 



often hard and firmer than that of the connective tissue, so that 

 the surface is surrounded by a firm, hard, horny covering (horny 

 warts). The reverse is found in the case of soft, fleshy warts. 

 These little formations are found on the skin of dogs of all ages, 

 as a rule, on the head and back, but also in other regions, and they 

 often disappear without any treatment. Now and then these 

 horny warts grow to a very large size and form what are called 

 "cutaneous horns." Such are found on the forehead, the ear> 

 and flanks; they are generally seen in old dogs. Enormous num- 

 bers of warts are sometimes seen in the mouth on the buccal 

 membrane. 



(6) Flat Condyloma. By this we mean certain marked malfor- 

 mations which have the shape of a papilla, but, as a rule, are 

 ramified and divided, forming coxcomb-like collections. They also 

 appear in some cases as true papilloma, particularly as a sarcoma- 

 tous formation. As a rule, they appear upon other regions than 

 the skin, such as the lips, cheeks, and prepuce, also upon the mu- 

 cous membranes in the buccal cavity. They are generally salient 

 and easily made to bleed. This is due to the large number of 

 bloodvessels they contain, their softness, and very thin epithelial 

 covering. The author has noticed that dogs affected with con- 

 dyloma of the vulva or penis also show these formations quite 

 frequently on the edges of the lips. Gratin has often seen the 

 obscure transmission of condyloma from one dog to another. 

 This would tend to establish the fact that this disease is cou- 

 tagious. 



All varieties of papilloma may be removed by a curette or a 

 pair of scissors. The use of caustics, ligatures, or amputations 

 is also recommended. 



Palm recommends the foUowins:: 



o 



R. — Acid, salicylicum ...... 1 part 



Acid, lactic. ] 



Collodion-ether I ^^ ^ parts 



S. — Apply twice daily. 



Adenomata. These are malformations of the true glandular 

 tissue, which always originate in some gland and can be distin- 

 guished from simple glandular hypertrophy by the fact that they 

 stand out from their surroundings, are knotty, tough, or sometimes 

 soft tissue. Their growth is slow; their metamorphoses consist, 



