444 
ftEpoKTs of Oases. 
REPORTS OF CASES. 
INQUIRY FOR AN OBSCURE DIAGNOSIS. 
* - 
By J. F. Winchester, D.Y.S. 
On November 14th, at 7 P. M., I was called to see a horse 10 
years old, and obtained the following history. About one year 
ago he had an attack of “ colic ” and was treated with a cathartic, 
and for the past three weeks he has shown u weakness behind,” 
most marked upon the right side, being quite lame while going 
down hill. When at rest he would roll, very stiff when started, but 
gradually becoming more limber with exercise. On November 
12 th, while standing in the shafts, he fell down, broke them and was 
only got up with some difficulty, but to this no attention was paid. 
On the 13th he fell again and more trouble being experienced in 
getting him up, he was taken out of harness and put into the barn, 
laid down that night and got up next morning. At noon on the 
14th, he fell down on the right side and as he could not be raised, 
I was called, and found him still lying on that side, perspiring 
profusely and apparently in considerable pain, throwing the head 
round to the left side and grunting. Pulse at the time was 60 
full, respirations 24 and labored, temperature 100° F.; on pricking 
him over the hind extremity I found sensation complete and could 
move the legs all right. He urinated and passed feces frequently 
and normally. Diagnosis-—— ?. Prognosis: very grave. 
These symptoms were gradually aggravated till next A. M., 
when he died at 10 o’clock. Pest mortem made twenty-four 
hours after death. On opening the abdomen and removing the 
intestines, I found the colic arteries and veins full of blood and 
the mucus membrane of the colon deeply congested. The poste¬ 
rior aorta from where it leaves the diaphragm to the great 
mesenteric artery, showed four aneurismal sacs, that at the 
mesenteric being calcified. At the quadrification of the iliacs I 
found a clot of blood, yellowish in color and quite firm, extending 
into the right external and internal iliacs; the rest of the abdom- 
