CANINE PATHOLOGY. 
201 
the tail, at its base, three more were involving the anus, one 
as large as a lady apple was situated superiorly, another to the 
left, and the third, also to the left, but more inferior. They 
were all well defined, were of long standing, and had given rise 
to great trouble in defecation. Their external surface was nod¬ 
ulated, denuded of hair, hard to the feel, and here and there 
excoriated and bleeding. A diagnosis was made of cancerous 
tumor, and their removal was advised. The chances of success 
were considered favorable. 
With the owner’s consent, after proper preparation, the 
animal was given an anaesthetic and the tumors dissected out. 
There was but slight capillary hemorrhage, which was easily 
arrested by tortion. Continued sutures were applied to the 
wounds formed by the removal of the two largest tumors, and 
the others were left alone. The antiseptic spray of carbolic 
solution was used during the operation and during the healing 
process. 
The wounds around the anus healed by first intention. In the 
other, the sutures sloughed and were reapplied, but as this 
occurred a second time, strips of linen loaded with collodion 
were applied. These the dog tore off, and a bandage was then 
used, placing it at the base of the tail, taking in both wounds and 
secured to a kind of harness passed over the back, belly and neck. 
This worked nicely for a while, but as the wounds began to heal 
up, it was torn off. The wounds were then left alone, with the 
exception of an occasional cauterization of their edges with 
nitrate of silver. 
In twenty-one days from the date of the operation, all the 
wounds had healed, and the patieut discharged. The act of 
defecation was naturally performed, and no new growths have 
since appeared. 
A section of one of the tumors was kindly examined by Dr. 
Welch, of Bellevue Medical College, who reports as follows: 
“ The tumor is an epithelial cancer. It consists of large, 
frequently anastomosing alveoli, filled with cells resembling flat 
epithelial cells. In some places, so-called pearl globules, com¬ 
posed of horny, concentrically arranged flat cells are present.” 
