DISEASES AND TREATMENT OF THE HORSE 265 
II. — Diseases of the Arteries. 
3. Tumor (Aneurism). 
This is a diseased state of the walls of an artery. 
Causes. — The causes are unknown. 
Symptoms. — Tumor may be present for some time before 
being detected, in fact until the artery gives way at the point 
of attack. Should this occur internally and the artery be 
large, death soon follows from loss of blood. Should it occur 
in a small artery among the muscles death will not follow 
from loss of blood, because of the stoppage of bleeding by 
clotting, and pressure of the skin and muscle. This condition 
may be detected by a swelling suddenly appearing in the 
vicinity of the diseased artery. There may be weakness of 
course accompany the rupture according to its extent. Pres- 
sure upon the swelling will indicate the presence of the fluid 
within. 
Treatment. — Allow the fluid to remain in the swelling 
two or three days until positive that the artery has stopped 
bleeding; then, with a sharp knife, open into the lower part 
of the swelling — make a large cut — and remove all the clotted 
blood ; then, with a large syringe, wash out all the blood with 
lukewarm water containing a few drops of carbolic acid. 
After this, bathe the parts well with lukewarm water twice a 
day, and inject the white lotion each time, after bathing. 
Keep the animal quiet and it heals in the course of two or 
three weeks. Should bleeding of the artery occur the second 
time, it may be necessary to tie it above the point of rupture 
with a piece of strong cord. 
4. Rupture of an Artery. 
Causes. — It is sometimes caused by straining while foal- 
ing, drawing heavily, severe exertion of any kind, or a severe 
bruise. 
Symptoms. — These are the same as those of tumor or 
aneurism of an artery, only the artery is not diseased. 
Treatnient. — Treat in the same manner as a tumor or 
aneurism of an artery. 
