DISEASES OF THE SUBMAXILLARY LYMPH GLANDS. 355 



alone is insufficient in actinomycosis of the jaw. Frick confirms this. 

 The prognosis depends on the extent to which mastication is inter- 

 fered with, and on whether the animal can still be used for any 

 purpose. It is better to slaughter immediately the general condition 

 begins to suffer. Post-mortem shows the bones to be perforated 

 with granulation masses and pus cavities. The existing osteoporosis 

 is most clearly seen after macerating the bone (Fig. 330). 



Treatment, even when early adopted, offers little hope. Loose 

 teeth must be removed, the alveoli afterwards washed out with 

 a disinfectant fluid, and plugged with tow saturated with tincture 

 of iodine. Where abscesses have already perforated, antiseptic 

 injections may be tried. Tincture of iodine seems to deserve 

 preference. The internal administration of iodide of potassium has 

 been extensively tried in this disease, but with very varied and 

 often negative results. Moussu's experience leads him to prefer 

 energetic curettage of the parts and subsequent internal use of 

 potassium iodide. But more important than these therapeutic 

 measures is the administration of such food as makes little call on 

 mastication, as brewers' or distillers' grains. 



Pilz gave an eighteen months old foal 4 to 5 drams of iodide of potassium, 

 and injected the swelling with tincture of iodine daily. In five weeks 

 symptoms of poisoning occurred, appetite and condition were lost, the 

 coat was dry and staring, the limbs swollen, and pulse accelerated, but 

 these symptoms disappeared after the medicine had been discontinued 

 for a fortnight. Iodide of potassium was afterwards given for periods 

 of fourteen days at a time, until two pounds of iodide of potassium and 

 one pound of tincture of iodine had been used. At the same time the 

 parts were regularly washed out with different agents. Great improvement 

 was noted ; but as the foal was soon afterwards sold, the final result of 

 the treatment could not be determined. 



(9.) INFLAMMATION AND NEW GROWTHS IN THE 

 SUBMAXILLARY LYMPH GLANDS. 



Infectious processes in the lips, nose, cheeks, or nostrils usually 

 cause swelling of the submaxillary lymph glands. This is especially 

 noted in glanders, strangles, certain forms of cellulitis, and also in 

 some malignant new growths, such as carcinoma, mycofibroma, and 

 actinomycosis. In the last-named disease chronic lymphadenitis, 

 accompanied by marked swelling, pus formation, and ulceration, may 

 also occur. 



Symptoms. The acute inflammatory diseases of the submaxillary 

 glands are described in works on pathology. The chronic are 

 characterised by swelling, which is slightly painful and moderately 



