Part 64

HISTORY.--Until the publication in 1829 of a thesis by J. T. Mondière entitled Recherches sur l'Inflammation de l'Oesophage, et sur quelques points de l'anatomie pathologique de cet organ, little study had been devoted to acute inflammation of the oesophagus; and since that time Mondière's researches have been largely utilized by subsequent writers. It has been taken for granted that Galen's mention of pain in the oesophagus has indicated his recognition of the disease. Fernel mentions phlegmon of the oesophagus; Honkoop describes inflammation of the oesophagus; J. P. Frank describes an oesophageal angina; and Joseph Frank seems to have been the first author to use the term oesophagitis. Since the publication of Mondière's monograph the principal systematic descriptions have been those of Hamburger Von Oppolzer Zenker and Ziemssen Luton, and Bernheim.

ETIOLOGY.--Acute oesophagitis is quite a rare disease. It occurs idiopathically, deuteropathically, and traumatically--traumatically far the most {410} frequently, and idiopathically least frequently. It is doubtful whether any special predisposing causes of oesophagitis can be indicated. Nevertheless, infancy has been so cited by some authors (Mondière, Billard, Behier, and Steffan). Slight idiopathic catarrhal--or rather erythematous--oesophagitis occasionally ensues in the adult from sudden or prolonged exposure to cold and moisture, and under such circumstances may sometimes be regarded as rheumatic in origin, subsiding after a few hours' continuance, to be immediately succeeded by manifestations of articular rheumatism, acute or subacute, as in some analogous examples of rheumatic pharyngitis. Exceptionally, severe oesophagitis may follow a simple cold (Noveene, cited by Bernheim), or presents as an extension of sore throat, the result of cold (Graves). It is induced also by the habitual use of very hot drinks and food, and occasionally by the opposite extremes, the use of very cold articles of food and drink (Mondière, Bourguet, Hamburger). The abuse of tobacco and alcohol is alleged as quite a frequent cause of mild oesophagitis, usually occurring, however, in association with pharyngitis from the same causes.

Oesophagitis sometimes follows the deglutition of irritating medicines or moderately caustic poisonous substances not sufficiently acid to produce veritable traumatic oesophagitis. Mercury, codeina, and particularly tartar emetic, are cited as capable of exciting oesophagitis.

Large doses of tartar emetic, as formerly administered in pneumonia (Laennec), sometimes produced a peculiar form of pustulous oesophagitis, not unlike the pustulous oesophagitis sometimes occurring as part of the local manifestations of small-pox.

Deuteropathic catarrhal oesophagitis occurs sometimes as an extension of catarrhal pharyngitis on the one hand, and of catarrhal gastritis on the other. It also occurs in scarlet fever, measles, and typhus fever. It is likewise consecutive to the various diseases and surgical lesions of the tube itself. Parasitic oesophagitis occurs as an extension of parasitic stomatitis or thrush. Deuteropathic circumscribed phlegmonous oesophagitis is sometimes produced by extension of inflammation from softened caseous bronchial glands at the bifurcation of the trachea, and by pressure from mediastinal tumors, aneurism of the aorta, etc.

Pseudo-membranous oesophagitis is almost always deuteropathic. It has been encountered chiefly in association with pseudo-membranous pharyngitis or diphtheria, and with croupous pneumonia, but likewise in enteric and typhus fever, in cholera and in dysentery, in measles, scarlatina, and small-pox, in nephritis, tuberculosis, carcinoma, and pyæmia.

In a case of hysteria, to be mentioned later, the entire epithelial coat of two-thirds of the oesophagus was discharged by emesis. In this respect the local disease--in that instance at least--resembles pseudo-membranous enteritis.

Traumatic oesophagitis is produced by the deglutition of corrosive substances, which destroy portions of the mucous membrane in their passage or excite a suppurative inflammatory process, or is produced by the {411} passage of foreign bodies of sharp and irregular contour, or by the passage of surgical appliances, whether used for actual operations or for explorations merely.

In rare cases traumatic oesophagitis is the result of wounds with firearms or other weapons.

Phlegmonous oesophagitis may be the result of disease or injury of the interior of the oesophagus, or of its external coat by extension of disease from tissues surrounding it. Foreign bodies, arrested in the oesophagus or wounding it in their passage to the stomach; injuries from surgical appliances, exploratory or operative, employed in treatment for foreign bodies in the tube or in cases of stricture and morbid growth; and chemical irritants swallowed by accident or design,--are the chief causes in the former class of cases; but pustulous and pseudo-membranous oesophagitis must likewise be regarded as occasional causes. The causes operating upon the exterior of the tube primarily are suppurative laryngitis and tracheitis, tumefaction and softening of bronchial and tracheal lymphatic glands, and caries of the spine. Isolated cases have been attributed to emboli in connection with valvular diseases of the heart (Parenski, cited by Daton), and to fits of anger (J. Frank and Rigal, cited by Daton). In certain cases the cause is unassignable, and is then usually attributed to some dyscrasia, syphilis in particular.

PATHOLOGY AND MORBID ANATOMY.--Acute oesophagitis presents both as a diffused inflammation and a circumscribed process, annular or irregular in contour. It does not appear from the post-mortem records consulted that any special portion of the tube is particularly liable to circumscribed inflammation, though the lower fourth appears most frequently affected. The inflammatory process may be simply superficial or erythematous, catarrhal or desquamative (Zenker and Ziemssen), or it may be phlegmonous, and thus interest the submucous tissues as well as the mucous membrane. This may terminate in abscess or in diffuse suppuration with ulcerations. In occasional instances gangrene ensues. Both in diphtheria and in croupous pneumonia, pseudo-membranous oesophagitis is an occasional complication; and the same process is said to have been observed in typhus fever, measles, scarlatina, cholera, pyæmia, dysentery, tuberculosis, and carcinoma (Von Oppolzer and others).

Pustulous oesophagitis occurs in small-pox, and occasionally follows the use of tartar emetic in large doses.

The morbid anatomy of acute idiopathic oesophagitis, though usually detailed in descriptions of the disease, must be known by theory much more than by demonstration, few examples coming under the inspection of the pathologist in time to distinguish the progressive stages of the inflammatory process, and still fewer being revealed by oesophagoscopy during life. The lesions most frequently observed post-mortem are thickening, softening, and desquamation of the epithelium, with very scanty accumulations of viscid mucus here and there upon the mucous membrane. The mucous membrane is seen to have suffered numbers of pinhead or slightly larger superficial circumscribed erosions, rounded or longitudinal, and likewise a few actual ulcerations. The follicles of the mucous membrane are often both swollen and hypertrophied, reaching the size of peas, especially in the upper portion of the tube.

The desquamation of the epithelium usually takes place in small {412} patches. One case, however, has been recorded (Birch-Hirschfeld) in which a young hysterical woman, after suffering three days with acute oesophagitis without assignable cause, ejected by emesis a membranous tube two-thirds of the entire length of the oesophagus, and shown under examination to have been the completely detached epithelial coat of the oesophagus, wholly normal in its upper layers and infiltrated with agglomerated round cells in its lower layers. It was supposed that the mass had been detached in consequence of acute subepithelial suppuration.

In addition to swollen and hypertrophied follicles there may be some evidence of ulcerative destruction of these follicles. Mondière and others declare that this folliculous inflammation and ulceration may exist without any other change whatever in the remaining constituents of the mucous membrane; and therefore this form of oesophagitis was termed folliculeuse by Mondière (folliculous oesophagitis). This form of the disease has been observed in typhus fever, in croup (Mondière), and in tuberculosis. Ulceration of the oesophagus occurs, likewise, in carcinoma and in oesophagitis from corrosive fluids, wounds, and other injuries.

In pseudo-membranous oesophagitis the exudation occurs usually in small circumscribed gray-yellow or brownish flakes or stripes distributed over different portions of the surface, more closely, however, at the upper portion of the tube. Superficial erosions are sometimes observed beneath these deposits, and occasionally ulcerations, at times sufficient to give rise to severe hemorrhage (Zenker and Ziemssen). Usually the mucous membrane is but slightly hyperæmic. In some instances pseudo-membrane is so massed in plugs as to occlude the cavity of the tube, as with obturators. In cases associated with pseudo-membranous gastritis the oesophageal manifestations are greatest in the vicinity of the cardiac extremity. Somewhat allied to pseudo-membranous oesophagitis, and apt to be confounded therewith, is the parasitic deposit of the Oïdium albicans in cases of thrush; in connection with which subject this point has already received attention.

The pustules of small-pox may interest any portion of the mucous membrane, but are most numerous at the upper portion of the tube. They may be discrete or confluent. The pustules from tartar-emetic poisoning are most numerous at the two extremities of the canal. It is contended that the so-called pustules of variolous oesophagitis are really superficial variolous ulcers, the antecedent specific lesions having been lenticular papules merely, with abrasion of the softened epithelial layer. Variolous oesophagitis may excite an accompanying catarrhal or pseudo-membranous oesophagitis. The local lesions, be they pustular or ulcerous, heal without cicatrices.

Phlegmonous oesophagitis presents both as a diffuse and as a circumscribed inflammation. Examined after death, there is abundant purulent infiltration into the submucous connective tissue, which has undergone destruction in portions of its extent. The infiltration pushes the folds of mucous membrane outward to the interior of the tube, and thus diminishes its calibre considerably when the infiltration is annular. {413} The mucous membrane is congested, ecchymosed, and covered with mucus, and has usually suffered desquamation of portions of its epithelium. Ulcerations through the mucous membrane will have taken place in some instances. Cicatrices mark the location of ulcers which have healed.

In the diffuse variety the oesophagus is inflamed and swollen, as a whole, in proportion to the extent of the disease. In the circumscribed variety the morbid appearances are circumscribed. It has been known to continue into the stomach (Belfrage and Hederius, cited by Zenker and Ziemssen), and to extend therefrom (Ackermann, idem).

As described by Zenker and Ziemssen, chiefly from ten autopsies by themselves and one by Belfrage and Hederius, phlegmonous oesophagitis begins with a submucous purulent infiltration, transforming the areolar tissue into an apparent layer of pus, although microscopic examination shows the bundles of connective tissue to be intact at first. At a later period they become really destroyed, leaving mere crevices filled with pus. The mucous membrane, but little involved, may remain normal or may present the evidence of catarrhal inflammation, desquamation of epithelium, congestion, and slight deposits of mucus. The muscular coat, intact to the unaided eye, under the microscope gives some evidence of purulent infiltrations. The pus may finally escape through the mucous membrane, in extensive infiltrations, at several points, which give the parts a sieve-like appearance when the perforations are closely grouped.

Gangrene sometimes occurs as a result of intense phlegmonous oesophagitis, but this is far more rare than the gangrene supervening after injuries by caustic substances. Sometimes it results from capillary embolism (Rokitansky, Virchow, cited by Luton, op. cit.).

SYMPTOMATOLOGY, COURSE, DURATION, TERMINATION, COMPLICATIONS, AND SEQUELÆ.--The main subjective symptoms of oesophagitis are pain and difficulty in swallowing, with febrile phenomena superadded in severe cases. In simple oesophagitis of mild character these symptoms may be so slight as to be attributed to other causes or be disregarded altogether. In most instances there is a dull, steady pain beneath the sternum, some sense of impediment to deglutition or absolute pain in swallowing (odynphagia), and occasional regurgitation of viscid, glairy mucus, food, or acid products from the stomach. In severe cases the substernal pain is more acute and more diffused, and is frequently associated with pain between the scapulæ and to the left side. This latter pain may be attributable to acid from the stomach. Sometimes the pain is described as acute, especially during the passage of large boluses, particularly if they are very hot, or even very cold. The seat of pain, however, does not always indicate the seat of inflammation, even though the pain be always referred to the same locality. When the cervical portion of the tube is implicated, tenderness may sometimes be detected by external pressure or by special movements of the head and vertebræ.

The amount and character of the dysphagia vary greatly. Sometimes there is a sense of impediment to the passage of food, solid or liquid, or solid only, through and beyond the painful region. This sensation may be accompanied or be followed at a brief interval by regurgitation of food or mucus, or food enveloped with mucus, the latter in some instances tinged with blood. The deglutition or the regurgitation may be {414} accompanied by spasm of the muscular coat of the oesophagus. The dysphagia is not always due to tumefaction of the mucous membrane, but usually in part to coexisting inflammation of the muscular coat or infiltration between the sheaths of muscular fibres, paralyzing their efforts at contraction.

There are no subjective symptoms which permit discrimination between desquamative catarrhal oesophagitis and folliculous oesophagitis. The only symptom particularly indicating pseudo-membranous oesophagitis is the expulsion of shreds of the membrane by hawking or by emesis; but a strong inference is justifiable when the ordinary symptoms of oesophagitis occur in cases of pseudo-membranous pharyngitis or croupous pneumonia.

Phlegmonous oesophagitis is indicated by the presence of pus or of dead mucous membrane in the matter regurgitated or vomited. In severe cases there is considerable febrile reaction. In children, convulsions may supervene from reflex irritation conveyed along the pneumogastric nerve.

The course of acute catarrhal oesophagitis is, as a rule, short, the pain and dysphagia usually subsiding in a few days, with complete resolution and no unfavorable sequelæ. When due to obstruction, the course is indefinitely prolonged. Sometimes it subsides into a mild or unsuspected chronic oesophagitis. In the symptomatic oesophagitis of febrile diseases, the course is longer and unequal. In severer forms and in phlegmonous oesophagitis, the disease may be protracted by suppuration, abscess, gangrene, perforation of the oesophagus, and other complications. It often terminates fatally--in three or four days in some cases--sometimes under symptoms of collapse. Cases may recover without important sequelæ, but stricture very often results from cicatricial complications. Chronic oesophagitis is a more frequent sequel of the phlegmonous variety than of the catarrhal. It, in its turn, may give rise to dilatation of the oesophagus, annular or diverticular, from detention of food and consequent pressure.

DIAGNOSIS.--The diagnosis will rest upon the interpretation of the coexistence of a certain number of the symptoms mentioned. Idiopathic phlegmonous oesophagitis may readily be mistaken for dorsal myelitis by the location of the pain--the more so that the spinal disease is occasionally attended with spasm of the oesophagus, and the myelitis by difficulty in deglutition; but the differentiation may be determined by the inability to produce oesophageal pain by pressure made along the dorsal vertebræ. In deuteropathic or traumatic phlegmonous oesophagitis, the history of the attack will indicate the probable nature of the malady, and prevent the mistake. Diffused oesophagitis is suspected when the general pain or the painful dysphagia appears to extend along the entire tract of the oesophagus, or at least a large portion of it.

Circumscribed oesophagitis is usually indicated by odynphagia at a certain point of the tube after completing the act of deglutition. The location of the inflammation can sometimes be determined by auscultation of the descent of the alimentary bolus or of a swallow of water (Hamburger), which may yield evidence to the ear of arrest or impediment to its passage. Auscultation of the oesophagus, however, is less useful in acute oesophagitis than in stenosis, stricture, and mechanical obstruction. When available in oesophagitis, the normal sound of the passage of water down {415} the gullet becomes masked, and accompanied by that of regurgitative ascent of small bubbles of air. Sometimes there is a slight friction sound during the act of deglutition itself. In circumscribed oesophagitis, especially when annular, as is most frequently the case, sounds are heard attributable to marked obstruction to the descent of the bolus. Abscess cannot be positively diagnosticated until after its rupture and the appearance of pus in the matters regurgitated or otherwise expelled from the oesophagus.