PHLEGMONOUS PHARYNGITIS. Submucous inflammation and abscess. Solipeds especially. Specific, or due to microbian pus infection. Traumatism; from foreign bodies in tonsillar and mucous follicles, from rough, fibrous food, instruments, etc. As a sequel of catarrhal pharyngitis. Symptoms; as in catarrhal form, with more swelling and tenderness, glandular swelling, dyspnœa, and difficulty in swallowing; local induration followed by fluctuation and pointing. Complications; asphyxia, laryngeal œdema, purulent or inhalation pneumonia, pharyngeal fistula, palsy of vagus, secondary abscesses, septicæmia. Lesions, local, general. Treatment; General and local, fomentation—hot or cold and antiseptic. Embrocations. Lancing. Tracheotomy. As distinguished from catarrhal pharyngitis this is inflammation of the submucous tissue and adjacent lymph glands, tending to abscess. It is especially common in solipeds and rather rare in other classes of domestic animals. As a specific infectious disease it has its type in strangles (infectious adenitis), also in cattle in the complicated infection of purulent tubercle, but apart from such it is often the result of the penetration of the pus microbes from a catarrhal pharynx into the lymph plexuses and lymph glands. Traumatism may play an important part in causation as when vegetable barbs, awns, chaff or seeds, or strong hairs or bristles enter the open mouths of the mucous follicles, or the tonsillar cavities. Similarly trouble may arise from scratches by tough, fibrous fodder, from pricks by pointed or cutting instruments, by fractures of the hyoid, or by bruises by probangs, or tooth rasps. An overgrowth of the last molar, and a resulting wound and ulcer of the soft palate, and the presence of local deposits like those of glanders and actinomycosis, are other occasions of the entrance of the pus organisms. It will be recognized that this affection is not necessarily due to a difference in the infecting organism, but rather of the tissue involved, the microbes gaining the submucous tissues and expending their violence on these instead of confining their ravages to the surface layers of the mucosa. For this reason the deeper or phlegmonous affection may supervene on a catarrhal inflammation which may have already persisted for several days.