In some cases enlarged follicles are very prominent in the infra-tonsillar space, between the anterior and posterior palatine folds, and along the lateral walls of the pharynx down toward the base of the tongue. The circumvallate papillæ may also be enlarged, and the fungiform papillæ are sometimes very prominent and deeply congested.
In the folliculous variety of the disease the hyperplasia affects chiefly the mucous glands and follicles, isolated or in groups, together with zones of connective tissue surrounding them and the epithelial investment of the mucous membrane in their immediate neighborhood. A number of small projections, from the size of pinheads to that of peas, mostly somewhat hemispheroidal, sometimes ellipsoidal or quite irregular in configuration, stud the pharynx irregularly. When clustered they are more apt to occupy the lateral angles of the pharynx. In this locality indeed the chains of glands and their enveloping mucous membrane sometimes present in longitudinal ridges which simulate additional or adventitious post-palatine folds. The projections are usually opaque, deeper in color than the surrounding congested mucous membrane, and velvety from loss of squamous epithelium. Sometimes they are translucent, as if filled with colloid material, probably retained and degenerated secretion. Very often their contents undergo caseous degeneration, and sometimes even calcification—a variety designated tubercular by Green, Gibb, and others, but far different histologically from true tuberculosis of the pharyngeal glands, which does occur occasionally in phthisical patients.
Delicate red lines of engorged capillaries usually surround the base of these projections. There is great disposition to the accumulation of viscid, discolored mucus on the surface of the mucous membrane. As the disease progresses all the processes become more widely extended, until finally nearly the entire pharyngeal and oral mucous membrane becomes involved. The soft palate becomes relaxed and the uvula thickened and elongated, sometimes to an extreme degree. Chronic folliculous tonsillitis exists in many cases.
When either form of chronic pharyngitis continues for a long while unchecked, there may result atrophy of the glandular structures and epithelial elements generally, giving rise to pharyngitis sicca or atrophic pharyngitis (so-called dry catarrh). There is then but scanty secretion, and this dries rapidly upon the surface of the thin mucous membrane, which becomes rough, inflexible, and glazed.
SYMPTOMATOLOGY.—Cough, expectoration, impairment of voice, dysphagia, and uncomfortable sensations in the throat present in various degrees according to the stage of the disease and the temperament of the patient. Hemming and hawking to clear the throat often become habitual, especially in cases associated with chronic internal rhinitis, being provoked in many instances by secretory products which drop into the pharynx or glide along its walls. It is sometimes important to distinguish this habit from the cough of laryngeal or bronchial irritation.
In cases associated with chronic gastritis the loss of appetite and consequent emaciation accompanying the symptoms of pharyngitis sometimes lead friends of the patient to a mistaken diagnosis of consumption; and when, as is not infrequent, chronic bronchitis also coexists, even the physician may be misled.
In many instances of chronic folliculous pharyngitis evidently of long standing, and accidentally discovered at times to the surprise of the patient, no history of the classical group of symptoms can be obtained.
DIAGNOSIS.—The diffuse congestion of the mucous membrane and the absence of marked involvement of the follicles are, with the history of the case, the main discriminative features in the diagnosis of chronic catarrhal pharyngitis. The regular or irregular masses of tissue projecting beyond the general surface of the mucous membrane are the distinguishing characteristics of chronic folliculous pharyngitis. The vascular network of dilated capillaries mapping the surface into numerous irregular small areas of different sizes is not peculiar to either variety.
PROGNOSIS.—The prognosis of chronic catarrhal pharyngitis is favorable when no irremediable malady of body or mind exists. Much depends on the practicability of improving the dietetic and hygienic environment of the patient. The prognosis is likewise good in chronic folliculous pharyngitis under favorable surroundings, so far as relief from suffering is concerned; but the follicles, when long hypertrophied, so rarely undergo absorption under any treatment that their destruction becomes necessary—quite a different thing from their cure. The enlarged follicles once destroyed, the collateral irritative inflammation caused by them usually subsides. Impairment of voice, a result of the disease, may be remedied in young subjects, who will learn to use the voice with the abdomen in distension; but much improvement cannot be expected in old subjects and in those in whom the disease has been produced by improper methods of declamation, which are beyond correction.
TREATMENT.—In chronic catarrhal pharyngitis constitutional treatment adapted to the diathetic condition is required in the first instance. Alkaline laxatives are usually indicated by the irregularly coated tongue and the tendency to costiveness. These may be advantageously administered in half a pint of hot water one hour or so before meals, with a view of washing the stomach free from accumulations of mucus, epithelium, and retained products of digestion and decomposition, so that its condition may be improved for the reception and digestion of the ensuing meal. Topical medication of the throat is likewise requisite. This should be of a soothing character. Mild astringents are applicable, but strong astringents are often actually injurious. Silver nitrate and cupric sulphate in stick or strong solution should not be used; but sprays of dilute solutions (one or two grains to the ounce of distilled water), twice or thrice a day, are often of service. Zinc sulphate (five grains to the ounce) may be used in the same manner. Zinc chloride (ten grains to the ounce), carefully applied to the surface daily with a broad brush or soft cotton wad, is a useful remedy. Tannin in ether sometimes answers admirably, a delicate film being left for some time on the surface. Solutions of bismuth nitrate or borate in glycerin applied locally often relieve uneasiness. A broad flat brush is the best instrument for making these applications, placed low in the pharynx so as to paint the entire posterior wall by a single movement from below upward.