490 
A. ZUNDEL. 
Horses ridden in riding schools are often affected with it during 
the various evolutions of the haute-ecole. 
It is called single when the wound is slight; concealed when 
the pain is great and continued, as in the case where it takes 
place on the tendon, near the heels or the quarters; horny, when 
the contusion has taken place on the wall or at the coronary 
band ; complicated, when it is very serious and accompanied with 
other more severe lesions. It is always a horizontal wound or a 
tumor by contusion. 
I. Symptoms. —It is ordinarily recognized by the wound or 
swelling which exists upon the parts. Often, the horse is lame, 
and the affected part warm and painful; sometimes the hairs are 
cut, the skin scratched or torn. There may be a slight bleeding 
at the seat of the wound. When the wall has received the con¬ 
tusion, the vascular network underneath may become inflamed, 
and then pus is formed between the teguments and the hoof, 
which then become separated. Sometimes even the lateral fibro- 
cartilage of the foot becomes irritated and swollen and ulcerates, 
especially when the contusion has taken place on that part where 
the cartilage is; in this case the injury may be complicated with 
cartilaginous quittor. 
In severe cases, one may recognize a furuncular calk, charac¬ 
terized by the mortification and sloughing of a portion of skin at 
the place where the contusion took place; it is the cutaneous 
quittor of old hippiatry, with formation of a core; this is always 
very painful, and the inflammation generally spreads underneath 
the wall. Bouley calls it gangrenous when there is unlimited 
similar mortification of the tissues; in this case the slough in¬ 
volves large portions of the skin. At times it may be called 
phlegmonous, when an abscess forms itself under the skin ; then 
the coronet is warm, thick and inflamed, and the pain is extreme. 
Then if an incision be made through the dermis in its entire thick¬ 
ness, an abundant bleeding takes place, generally followed by the 
resolution of the disease; if there is already suppuration, it is at 
the same time immediately allowed to escape. 
II. Treatment. —If the injury is slight or recent, whether with 
or without wound, very cold water and the removal of the cause 
