CLINICAL CHRONICLES. 
541 
veterinary literature we fail to discover the reports of more than a 
few cases, which however, scarcely prove that they are not as rare 
in animals. That they may exist and have been observed, is an 
evident fact, and it is to assist in the investigation of others, and 
to record an interesting case of comparative pathology, that the 
following case is published, incomplete as it is. 
CARCINOMA OF THE BLADDER. 
By J. Kemp, Jr., D.V.S., House Surgeon. 
During last summer there was admitted to the hospital a gray 
gelding, 14 years old, 15J hands high, with the history that he 
had great difficulty in urinating, and exhibited symptoms of pain 
during the act. Small quantities of urine were frequently voided, 
after considerable straining on the part of the animal. It was 
also noticed that the urine was bloody, sometimes of a bright red 
color, at others intermixed with streaks of grayish matter. The 
horse had always fed well, and had done his work regularly up to 
within a few days of his admission to the hospital. At this time 
he presented the appearance of an aged animal, in a somewhat 
anaemic condition— i. e ., he moved about in a dull, listless man¬ 
ner ; temperature normal; pulse weak; mucous membrane pale 
and of a slightly yellowish tint. The animal did not seem to 
suffer any pain, and a casual observer would notice nothing but 
the frequent attempts at micturition and the dark colored urine. 
Upon rectal examination, the bladder was found to be two- 
tliirds full. At the fundus it presented the normal fluctuating 
condition, but toward the neck became hard and dense, at first 
giving an impression that it was filled with a firm, resisting sub¬ 
stance. This was especially noticeable in the neck. At the 
quadrifurcation of the posterior aorta, on the right side, could be 
felt two hard, resisting tumors, each about the size of a pigeon’s 
egg. Numerous tumors, of the same size and consistency, could 
be felt suspended from the mesentery, and on the lateral surfaces 
of the pelvic cavity. It was just possible to reach the right kid¬ 
ney, which seemed very tender on pressure, though no enlarge¬ 
ment was made out. With a view of ascertaining where the blood 
came from, an attempt was made to wash out the bladder. A 
