Text book of veterinary medicine, Volume 4 (of 5)Law, James
Science
Text book of veterinary medicine, Volume 4 (of 5)
Law, James
Veterinary medicine
Circumscribed phlegmonous exudates and small abscesses are sometimes
found in the mouth (tongue, soft palate, cheeks) and less frequently in
the œsophagus.
The stomach may show congestions, petechiæ, circumscribed hæmorrhages,
ulcers, and abscesses of the gland tissue or submucosa. Rupture of the
walls may follow abscess (Cadeac).
The intestines may show congestions, colorless or hæmorrhagic exudate,
and suppurations in the agminated or solitary glands, or submucosa. The
intestinal, mesenteric and sublumbar lymph glands may be the centres of
abscesses of varying sizes.
Abscesses may also be found in the liver, pancreas, spleen, of variable
size and usually as secondary formations.
The muscles and intermuscular tissue may be the seat of more or less
extensive exudation, and abscess, and the bones may be congested and
swollen especially in their epiphysis. This may extend to suppuration or
necrosis.
The synovial membranes of joints and the tendinous sheaths are not
infrequently inflamed causing distension and even suppuration.
Congestions of the skin are sometimes met with developing as multiple
papules or hard nodules which advance to the formation of pustules or
small abscesses. These often appear especially where the skin is thin
and delicate as around the lips, nose and eyes, close to the anus or
vulva, in the perineum, sheath or mammæ, inside the thighs or elbow.
They may be of all dimensions from a millet seed upward, and may merge
into or become complicated by the extensive engorgements of petechial
fever.
Finally lesions of the nerve centres are to be looked for in the
protracted or irregular types of the disease. There may be simple
congestion, or serous effusion, intraventricular or subarachnoid, or
finally abscess in the brain, spinal cord or meninges.
_Forms of Strangles._ The types of strangles vary, special forms
characterizing given epizoötics or seasons, or at other times as
individual deviations from the current type. Division has been made into
two groups—_mild_ and _malignant_, or again into _regular_ and
_irregular_, under each of which come several varieties. Many of these
varieties consist simply in a difference in the seat of the principle
lesions, which start in lymph glands or tissues at a distance from the
nasal mucosa, or they depend on secondary foci of infection supervening
on the primary disease in the head.
_Incubation._ In inoculated cases this lasts from three to five days, in
those due to simple exposure it may appear to extend over eight days.
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