Part 62

To the late Isambert of Paris belongs the credit of definitively recognizing the specificity of acute tuberculous sore throat or pharyngitis, and to him likewise the credit of indicating its differentiation from syphilitic sore throat, with which it had long been confounded. To B. Fraenkel of Berlin is likewise due the credit of an accurate comprehension and elucidation of the clinical and histological pathology of this disease.

ETIOLOGY.--Acute tuberculous pharyngitis is quite a rare disease. Its predisposing causes, in all probability, are identical with those of acute tuberculosis. Its exciting cause, in some cases at least, is some unusual exposure to cold and wet. It is not certain that the throat is affected before the lungs; but if this be the case, it is certain that the lungs become affected soon afterward. The disease occurs in young children, Isambert having recorded a case at four and a half years of age, but it is much more frequent in adolescents and young adults. It is impossible, as yet, to assign the reason why the pharynx rather than other structures undergoes tubercularization in these exceptional cases of pharyngitis. Syphilis sometimes coexists in the adult certainly, and it may be questioned whether hereditary taint may not be an important factor in determining tuberculosis in a region so frequently ravaged by syphilis.

PATHOLOGY AND MORBID ANATOMY.--The local disease is essentially an ulcerative pharyngitis or pharyngo-laryngitis, as may be, extremely rapid in its progress, and terminating fatally within a few weeks, or a few months at farthest. The ulcerative process usually begins on the palatine folds or else on the lateral wall of the pharynx, thence extending to the palatine folds, soft palate, uvula, and hard palate in one direction, and toward the posterior wall of the pharynx in the other. The uvula sometimes becomes thickened into a club-shaped, gelatinous-looking mass, somewhat characteristic. Previous to ulceration the mucous membrane is subjected to abundant infiltration with miliary and granular tubercle just beneath the epithelial layer. Macroscopically, these infiltrated portions of {401} tissue present as irregular chagrinated groups of patches, generally confluent, which when abundant or prominent are liable to be confounded with syphilitic patches. Just beneath the surface the collections of tubercle project as little semi-transparent grayish nodules, in size and form recalling the appearance of vermicelli-seeds or fish-eggs. They steadily increase in volume and in number, lose their translucency, and finally undergo disintegration into lenticular ulcers with caseous bottoms and undermined hyperæmic edges. The ulcers extend steadily in periphery and in depth, and coalesce by necrosis of intervening mucous membrane. Polypoid excrescences springing from the beds of the ulcers have been described (Fraenkel). Collateral tumefaction takes place in some instances, due, it is stated (Isambert), to infiltration of the tissues by a gelatinous material, possibly a mucoid degeneration of the connective tissue. The usual tendency of the disease, however, is to incite atrophic metamorphosis of the adjacent tissues not undergoing actual tubercularization. In many instances extension to the upper portion of the larynx takes place; in some, extension to the vault of the pharynx. Extension to the oesophagus, as has been remarked by Mackenzie, and to the posterior nasal outlets, has not been noticed. Enlargement of the cervical lymphatic glands is quite common.

Microscopic examination of the tissues of the pharynx has revealed profuse infiltration with round cells--most frequently in the mucous membrane and submucous connective tissue only, occasionally in the muscular fibres likewise. The muscles sometimes undergo the fatty degeneration, and the mucous glands both fatty and colloid degeneration.

SYMPTOMATOLOGY.--The chief and characteristic subjective symptom is extreme pain in swallowing (odynphagia)--pain much more intense than in other morbid processes in the same locality, and inexplicable by the extent of the visible disease merely. This pain often extends toward the ears. Cough, adynamic fever, rapid emaciation, and so on are present, as in acute tuberculosis generally.

DIAGNOSIS.--It cannot be stated that the diagnosis is easy. The two distinguishing characteristics are the exquisite pain in swallowing and the absence of pus from the surface of the ulcers. The aspect of the ulcers differs, furthermore, from that of syphilitic ulcers by the lack of opalescence and of inflammatory areolæ. The gray nodules in the affected mucous membrane are different from what is observed in any other disease. These points, with the history of the attack, the family history, and the probable evidence of tuberculosis in the lungs, will usually serve to discriminate the disease from syphilis, for which it is most likely to be mistaken. In cases of doubt ophthalmoscopic examination of the choroid and iris may reveal tubercle. The bacillus tuberculosis has been found in the detritus from the ulcers (Guttman, Gurovitch). The fact must not be ignored that syphilitic and tuberculous pharyngitis may exist together. Febrile symptoms, typhoidal in type, in a case of supposed syphilitic sore throat will most likely be indicative of tuberculosis.

PROGNOSIS.--The disease is rapidly fatal, apparently inevitably so. An exceptional case has been recorded, however (Cadier), living {402} several years after the diagnosis had been made by Isambert and many others.

Death takes place by asthenia in from six weeks to six months; occasionally within a fortnight from the apparent onset.

TREATMENT.--The little that can be accomplished in the way of treatment is limited to improving the diet and hygienic surroundings, with the administration of such constitutional remedial agents as are given in acute tuberculosis, and palliative treatment of the local suffering. For the latter purpose insufflations of iodoform and morphine are to be recommended, two or three grains of the former with one-fourth to one-half grain of the latter, once a day or oftener. Such insufflations should be preceded by douches or sprays of sodium borate or bicarbonate, to rid the parts of mucus and detritus. A drop or two of carbolic acid, of eucalyptol, or of a solution of thymol may be advantageously added for purposes of disinfection. Solution of hydrogen peroxide (2 per cent. or weaker) is a very valuable agent for use in spray or douche. It may be rendered more agreeable by the addition of a few drops of some balsamic.

When swallowing is impracticable, nourishment by enema is indicated, with forced feeding by means of a catheter passed through the larger of the two nasal passages into the oesophagus.

Chronic Pharyngitis.

DEFINITION.--A chronic inflammation of the mucous membrane of the pharynx, whether implicating the glandular structures or not, and commonly associated with similar chronic inflammation of contiguous structures.

SYNONYMS.--Chronic sore throat, Chronic angina.

Chronic pharyngitis presents in two varieties: 1, simple chronic pharyngitis (chronic catarrhal pharyngitis, chronic catarrhal sore throat), in which the disease does not affect, or affects but slightly, the glandular structures of the mucous membrane; and 2, follicular pharyngitis (granular pharyngitis, clergyman's sore throat), in which groups of the follicular glands of the mucous membrane are enlarged, and sometimes inflamed.

ETIOLOGY.--The predisposing causes of chronic catarrhal pharyngitis are those enumerated under the head of the acute form of the affection, and the exciting causes are repeated attacks of the acute malady.

The predisposing causes of chronic follicular pharyngitis are overcrowding, and sedentary occupations; and the exciting causes are chiefly improper use of the voice and exposure to local irritations, mechanical and chemical, including too free use of condiments, tobacco, and alcohol, gormandizing, and the alternations of hot food, cold drinks, ices, and hot drinks at meals. It is not so often a direct sequel of attacks of acute sore throat as a result of prolonged catarrhal pharyngitis; and sometimes it appears to be chronic, so to speak, from the outset.

Both forms of chronic pharyngitis are frequently associated with chronic inflammations of the mucous membranes elsewhere, particularly of the nasal passages and of the stomach, and, to a less extent, of the genito-urinary apparatus; the entire train of phenomena, in some instances, {403} being due to passive congestion dependent upon impaired cardiac power. Similarly, it presents at times as one of the accompaniments of exophthalmic goitre. It is often associated with phthisis, and is sometimes found in phthisical subjects prior to the detection of the pulmonary disease. It is sometimes coincident with chronic cutaneous eruptions, and may depend on the same causes, whether dietetic or nervous.

Uterine disturbances may give rise to chronic pharyngitis, probably by reflex nervous influence, and so do other chronic and dispiriting complaints. In like manner, depression of spirits and impairment of bodily vigor from domestic, financial, and social chagrin provoke a train of phenomena in which chronic pharyngitis may be a prominent manifestation.

PATHOLOGY AND MORBID ANATOMY.--Simple chronic pharyngitis is a chronic catarrhal inflammation of the mucous membrane and submucous connective tissue of the pharynx, with irregular hyperplasia of all the histological elements, chiefly affecting the epithelial layers and the most superficial strata of the submucosa. The pharynx, the posterior surface of the palate, and the pharyngo-palatine folds are the structures most generally implicated, but the glosso-palatine folds, the base of the tongue, and even the anterior surface of the palate, are sometimes involved. At an advanced stage of the affection extension may take place to the vault of the pharynx and the posterior nasal outlets, and in occasional instances to the larynx.

The initial hyperæmia of diffuse congestion finally leads to permanent dilatation of tracts of capillaries varying in area and mode of distribution, sometimes recalling the territorial outlines upon a map. The mucous membrane is bright red in color and irregularly thickened, sometimes into prominent welts or folds. The palate is often relaxed. Hypersecretion takes place over the entire diseased surface, and there is considerable desquamation of turbid epithelium, which sometimes accumulates in masses. Glands are dilated and hypertrophied here and there, but not in every instance, or if so indiscernibly, at least, to the naked eye.

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. {404} 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.