Part 48

DIAGNOSIS.--The isolated patches of the discrete form are usually sufficiently characteristic to establish the diagnosis.

{330} In children the gums are usually seen to be congested, swollen, moist, and glistening. Sometimes they are even sanious. This condition is deemed of great importance in cases of small, solitary aphthæ concealed in the sinus between gums and lips (Rilliet).

Confluent aphthæ may be mistaken for ulcerative or ulcero-membranous stomatitis, especially when the emanations from a coated tongue exhale a disagreeable or fetorous odor.

From thrush--with which it is most frequently confounded--it is to be discriminated by the absence, upon naked-eye inspection, of the peculiar curdy-like exudations to be described under the appropriate section, and under microscopic inspection by the lack of the peculiar thrush-fungus (Oïdium albicans).

PROGNOSIS.--Recovery is usually prompt in discrete cases, but relapses are not infrequent. In confluent cases recovery is dependent upon the character of the constitutional disorder by which the local disease has been caused or with which it is associated, and is therefore much slower.

The disease is grave in certain epidemic confluent forms, such as are described as occurring in Holland and elsewhere under conditions alluded to. Parturient women under such circumstances occasionally succumb to the typhoid condition into which they are thrown. When following measles there is some danger of laryngitis, and the case becomes grave. Oedema of the larynx is sometimes produced.

TREATMENT.--Very simple treatment suffices in the discrete form of the disease. A mild antacid, or even an emetic, may be indicated when there is gastric derangement or disturbance; or a mild laxative when the patient is costive. Castor oil, rhubarb, or magnesia may be given, followed, if need be, by an astringent if diarrhoea should occur. A little opium may be administered if requisite. The diet should be quite simple and unirritating. Cold milk is often the very best diet, especially while the mouth remains quite sore.

Topical treatment in the milder cases may be limited to simple ablutions, by rinsing or by spray, with water, cold or tepid as may be most agreeable to the patient. A little opium may be added when the parts are painful or tender. In severer cases an antiseptic wash may be substituted, as the sodium sulphite or hyposulphite, thirty grains to the ounce, creasote-water, or the like.

Demulcent washes of elm, sassafras-pith, or flaxseed are often more soothing than simple water. Pellets of ice from time to time are quite refreshing and agreeable. Occasional topical use of borax or alum, applied several times a day by means of a hair pencil, soft cotton wad, or the like, is often useful, care being taken to touch the sores lightly, and not to rub them. If the course toward repair is retarded, the parts may be touched lightly with silver nitrate in stick or in strong solution (60 grains), or washed more freely, two or three times a day, with a weaker solution, five or ten grains to the ounce of distilled water. Cupric sulphate, ten grains to the ounce, zinc sulphate, twenty grains to the ounce, mercuric chloride, one grain to the ounce, or potassium chlorate, twenty grains to the ounce, may be used as local applications, repeated at intervals of four or five hours. Iodoform has been highly recommended of late.

{331} The confluent variety requires constitutional treatment adapted to the underlying malady. Nutritious diet is often demanded, together with tonics, such as iron and quinia, or even stimulants, wine or brandy. Topically, cauterization with silver nitrate is more apt to be indicated, and to be indicated more promptly than in the discrete form. Potassium chlorate in doses of one or more grains may often be given with advantage, at intervals of from four to two hours.

Stomatitis Parasitica.

DEFINITION.--An exudative inflammation of the interior of the mouth, due to the development upon the mucous membrane of a parasitic vegetable confervoid growth, the Oïdium albicans (Robin).

SYNONYMS.--Stomatitis cremosa; Stomatitis pseudo-membranosa; Thrush; Muguet of the French; Schwämmchen of the Germans.

HISTORY.--Thrush was long regarded as a pseudo-membranous variety of stomatitis, and was likewise confounded with other varieties of stomatitis, especially aphthæ, its differentiation from which will be rendered apparent by a study of its etiology and morbid anatomy.

The microscopic researches of Berg of Stockholm upon the minute structure of the supposed pseudo-membrane developed the fact that it was largely composed of certain cryptogams. This growth was named Oïdium albicans by Prof. Ch. Robin, by whom it had been subjected to minute study.

Later observers consider the oïdia in general simply transitional forms in the life-history of fungi otherwise classified. According to Grawitz, the O. albicans is a stage of the Mycoderma vini, his experiments having shown that on cultivation the filaments germinate like Torula and Mycoderma, and that the latter can be grown in the epithelium of the mucous membrane.

ETIOLOGY.--Thrush is usually a symptomatic disease, secondary to an {332} acid condition of the fluids of the mouth. Athrepsia (Parrot, Meigs and Pepper), or innutrition, is the presumable predisposing cause. Negligence in maintaining cleanliness of the mouth and of the articles which are placed in it is regarded as the main exciting cause. It occurs both in the adult and in the infant, but it is much more frequent in infancy and in early childhood. It is most frequently encountered in asylums and hospitals for children, being often transmitted from child to child by the nurse or by means of the feeding-bottle. The poor health of the child seeming less accountable for the disease than the unsanitary condition of the wards, buildings, and surroundings, it is consequently much less frequent in private than in public practice. It is more frequent in the first two weeks of life than later. Seux observed it within the first eight days in 394 cases out of 402 (Simon). It is much more frequent during summer than at any other season, more than half the cases (Valleix) occurring at that portion of the year.

In senile subjects, in adults, and in children more than two years of age it is cachectic, and observed chiefly toward the close of some fatal and exhausting disease, such as diabetes, carcinoma, tuberculosis, chronic pneumonia, enteric fever, puerperal fever, erysipelas, chronic entero-colitis and recto-colitis, and pseudo-membranous sore throat. It is sometimes observed in the early stage of enteric fever.

Meigs and Pepper, apparently following Parrot, deem the central cause to lie in a certain failure of nutrition under which the general vitality slowly ebbs away. They are inclined to recognize a causal factor in a deficiency in the supply of water in much of the artificial food administered to young subjects. The normal acidity of the fluids of the mouth of the newly-born (Guillot, Seux) is not sufficiently counteracted until saliva becomes abundant. Premature weaning, entailing, as it often does, the use of improper foods, renders the child liable to gastro-intestinal disorders. To this add want of care of the bottle and nipples, of the teaspoon or pap-boat, and of the mouth itself, and the conditions are fulfilled in fermentations of remnants of milk taking place without and within, which produce the acid condition of the fluids and secretions of the mouth said always to accompany and precede the development of the disease (Gubler).

The theory of contagiousness seems established (Guillot, Berg, Gubler, Robin, Trousseau). This has been further demonstrated by experiments upon sheep (Delafeud), in which thrush has been implanted whenever the animals were unhealthy, but not otherwise.

PATHOLOGY AND MORBID ANATOMY.--The mucous membrane of the mouth within a few hours after its invasion by thrush is seen to be covered to some extent by minute masses of a granular curdy substance adherent to the tissues, which often bleed slightly when the substance is forcibly removed.

In children much reduced by inanition or severe disease, much of the deposit soon coalesces into a membraniform product, grayish or yellowish from rarefaction by the air, or even brownish from admixture of blood. By the same time the general congestion of the mucous membrane will have subsided into the pallor of anæmia. Though tolerably adherent when fresh, the deposit when older often becomes loosened {333} spontaneously, so that it may be removed by the finger in large flakes without producing any hemorrhage whatever.

The characteristic masses present both as delicate roundish flakes, isolated, not larger than a pinhead, and as confluent patches several times as large and more irregular in outline. These masses under microscopic inspection are seen to be composed of the filaments and spores of a confervoid parasitic plant, the Oïdium albicans, enclosing altered epithelia in various conditions. This parasitic growth does not become developed upon healthy mucous membrane with normal secretory products. Acidity of the fluids and exuberance of epithelium are the requisites for its production, whatever be the cause. The acidity of the fluids irritates the mucous membrane upon which they lie. This irritation induces abnormal proliferation of epithelium, upon which the spores of the cryptogam then germinate. Dissociated epithelial cells become proliferated at the surface of the mucous membrane, between which and upon which both free and agglutinated spores accumulate. From these spores sprout out simple and ramified filaments in compartments containing moving granular elements. (For the minute detailed anatomy of these filaments and spores the reader is best referred to Robin's work on Vegetable Parasites.)

It may suffice here to mention that the filaments are sharply-defined tubercles, slightly amber-tinted, of a mean diameter of between four and three millimeters, simple while immature and branched when fully developed. These tubules are filled with link-like groups of elongated cells in compartments, giving them an appearance of regular constriction at the junctions of adjoining groups of cells. Surrounding these tubules are groups of spheroid or slightly ovoid spores from five to four millimeters in diameter. Each spore contains one or two granules and a quantity of fine dust. This cryptogamic growth is developed in the proliferated cells of epithelium. The filaments in their further growth separate the epithelia, and even penetrate them. Thence they penetrate the mucous membrane and the submucosa (Parrot).

The mucous membrane beneath the growth is red, smooth, and glistening. Papillæ are sometimes prominent. It is not excoriated unless the growth has been removed with some violence, when, as noted, it may bleed slightly. Duguet and Damaschino have recently encountered cases associated with a special ulceration of one of the palatine folds; the former in enteric fever, the latter in a primitive case. The growth is quickly reproduced after removal--even within a few minutes when the secretions are very acid.

The glossal mucous membrane is usually the tissue first involved, the specks being more numerous at the tip and edges of the tongue than at its central portion. The glands at the base of the tongue may become invaded. From the tongue extension takes place to the lips, the cheeks, the gums, and the palate, hard and soft. The growth is especially prolific in the folds between lips and gums and between cheeks and gums. Sometimes the parts mentioned become involved successively without actual extension. In several recently reported instances occurring during enteric fever, the affection began on the soft palate, tonsils, and pharynx, and then progressed anteriorly toward the tongue, the cheeks, and the lips.

{334} But there is no limitation of the disease to these structures. The growth may cover the entire mucous membrane of the mouth. From the mouth it may reach the lateral walls of the pharynx, and in rare instances the posterior wall of the pharynx. The product is said to be more adherent on the pharynx (Reubold) than in the mouth. From the pharynx it may reach the epiglottis, and even the larynx (Lelut), in which organ it has been seen upon the vocal bands (Parrot). It has never been observed in the posterior nares or at the pharyngeal orifice of the Eustachian tube. It flourishes best, therefore, upon squamous epithelium. In infants much reduced, Parrot has seen ulceration in the neighborhood of the pterygoid apophyses, but attributable to the cachectic state of the child, and not to the disease in the mouth.

In many cases--in as large a proportion as two-thirds, according to some observers--the oesophagus becomes invaded, either in irregular longitudinal strips or in rings, in all instances (Simon) terminating a little above the cardia. In exceptional cases the entire mucous surface of the oesophagus may be covered with the product (Seux). It has been seen in the stomach (Lelut, Valleix), and is even said to be developed there (Parrot), presenting as little yellow projections, isolated or contiguous, from the size of millet-seeds to that of peas, and usually located along the curvatures, especially the smaller curvature and cardia (Simon).