INFLAMMATION OF THE SUBCORONARY CONNECTIVE TISSUE. 787 
Particular care is required during cicatrisation ; horn formation at the 
coronet should be discouraged until all Swelling has disappeared. Should 
it occur, the parts may be moistened with a '5 per cent, caustic potash 
01 soap solution, which will check the hardening of the new horn until 
inflammatory swellings disappear. Irregular cicatrisation must be 
treated in a similar way. 
Veiy little can be done to prevent abnormal growths of horn on the 
coronet. If such growths only affect a small area—if, for instance, the 
base is no bigger than a five-shilling piece—the newly-formed mass may 
be completely cut away, which will improve matters, and may possibly 
iesult in complete cure. This becomes necessary when the growth over¬ 
hangs the wall, and, as is often the case, maintains chronic suppuration 
around its base. The entire base is cut away and a dressing applied to 
check bleeding, which is sometimes severe, and may necessitate the use 
of the actual cautery. 
The deferred complications which follow severe accidents like those 
due to an omnibus wheel passing over the coronet, must be combated as 
they arise. Deformity of the foot, the growth of large exostoses and 
lameness can be treated respectively by the use of the farrier’s rasp and 
knife, by firing and by neurectomy. 
INFLAMMATION OF THE SUBCORONARY CONNECTIVE 
TISSUE 
The abundant connective tissue underlying the coronary band is in 
intimate connection with the subcutaneous connective tissue of the 
coronary region, and is related below to the parachondrium, and through 
this to the fibro-fatty frog. 
The subcoronary connective tissue is loose, and contains the great 
venous plexus of the coronet. It extends as far as the capsular ligament 
of the pedal-joint. 
Injuries to the coronet, like treads and brushing wounds, often lead to 
infection of, and diffuse inflammation in, this connective tissue (cellulitis 
of the subcoronary connective tissue). As a rule, the disease is confined 
to one side of the hoof, but sometimes extends to the other, so that the 
swelling involves the entire coronet. 
The condition is ushered in by inflammatory swelling, which appears 
more or less distinctly around the coronet, and is succeeded by violent 
pain, especially when weight is placed on the foot. The lameness is in 
direct proportion to the swelling, and is usually so severe as to prevent 
the animal ever standing firmly on the foot. The lymph vessels above 
the hoof are sometimes swollen, though this cannot always be detected 
with certainty. Rotation of the phalanges causes great pain. 
The disease shows a great resemblance to purulent inflammation of 
o E 2 
