Atrophy of the wall of the intestine, chiefly of the mucous layer,

supervenes upon catarrh. It is confined to certain areas, the rest

being normal or in a state of chronic catarrh. It is found in 80 per

cent. of the cases examined either in the large or small intestine. The

cæcum is the most frequent seat; next in the order of frequency it is

seen in the ascending {705} colon, the lower part of the ileum, the

other parts of the colon, and is least common in the upper part of the

ileum. In children the lesion is more common in the small intestine

than in adults. The changes in the mucous membrane of the colon are a

diminution in its thickness and disappearance of the glands of

Lieberkühn. The mucous layer is reduced to one-fifth of its normal

size, and no trace of the glands may be left; a layer of connective

tissue with imbedded round cells is all that remains. The surface of

the membrane is irregular and colored with yellowish pigment. In the

ileum the villi are shrunken, with few cells; in some cases they

disappear altogether. The muscular tunic may share in the atrophy.[28]

[Footnote 28: Nothnägel, "Zur Klinik der Darmkrankheiten," iii.

Abtheilung, Darmatrophie, _Zeitschr. f. klin. Med._, Berlin, 1882, iv.

p. 422; Virchow, "Ueber den Gang der amyloiden Degenerationen,"

_Virchow's Archiv_, Bd. viii. S. 364; E. Neumann, "Neue Beobachtungen

über amyloide Degeneration," _Deutsche Klinik_, Bd. xii., 1860, S. 337,

353, and 373; Lambl, "Ueber amyloide und colloide Degeneration im

Allgemeinen und die des Darmsinsbesondere," _Beob. und Studien_ (_aus

dem Prager Kinder-Spitale_), Prag., 1860, S. 319; Frerichs, "Diseases

of the Liver," New York, 1879 (_Wood's Library_), vol. ii. p. 180; M.

G. Hayem, "Note sur la Dégénérescence amyloide du Tube digestif,"

_Compte Rend. des Séances de la Soc. de Biologie_, Nov., 1865, 4me

Série, t. ii. p. 191; also, _Gaz. méd. de Paris_, t. xxi. p. 99.]

Lardaceous (amyloid or waxy) degeneration of the intestinal mucous

membrane is met with in chronic catarrh. The small arteries of the

villi and submucous layer, the muscular and other tissues, are

infiltrated with a new material allied to fibrin. The membrane to the

eye is paler than normal. When iodine is applied, a characteristic red

staining of the infiltrated parts is noticed. This lesion is a cause of

diarrhoea and of hemorrhage,[29] from the greater permeability and

greater fragility of the arteries. It is also associated with

follicular ulceration, and is probably a cause of disintegration of the

mucous membrane.[30]

[Footnote 29: T. Grainger Stewart, "On Hemorrhage from Waxy or Amyloid

Degeneration," _Br. and Foreign Med.-Chir. Rev._, vol. xli. p. 201.]

[Footnote 30: Frerichs, "Diseases of the Liver," New York, 1859

(_Wood's Library_), vol. ii. p. 180; also, E. Aufrecht, _Berl. klin.

Woch._, 1869, p. 315.]

The abdominal organs present other lesions in chronic intestinal

catarrh, few of which have any distinctive character. The peritoneum

shows signs of old or recent inflammation. The former is subacute or

chronic, and is recognized by the adhesions of opposed surfaces in a

limited area, frequently corresponding to the seat of intense

intestinal inflammation. Fatal perforations are delayed or prevented by

these adhesions. General peritonitis with soft lymph or sero-purulent

effusion is found with perforation. The mesenteric glands may be

enlarged. The liver is larger or sometimes smaller than normal, and its

tissue is softened and may be fatty. Abscess of the liver[31] is a very

rare result of chronic intestinal catarrh, with ulceration. The

gall-bladder is usually filled with bile. The spleen is small and firm

in texture; less commonly it is soft and friable. The pancreas is

healthy. The kidneys are large and pale; the cortical substance is

relatively increased and the tubules contain granular epithelium.

[Footnote 31: It occurred in 4 per cent. of Woodward's cases of chronic

follicular ulceration. See case reported by the writer in which the

ulcers healed before the death of the patient from hepatic abscess

(_Maryland Med. Journ._, March 15, 1883, p. 562).]

In the thorax the heart is flabby, pale, and small; clots are found in

the right and left side extending into the pulmonary artery and aorta.

Sudden death has been attributed to cardiac thrombosis. That coagula

{706} do form in the heart during life is shown by the sudden

occurrence of cerebral embolism with aphasia.[32]

[Footnote 32: The writer has seen one case of this kind occurring

during the effort at stool in a patient who was very feeble and very

anæmic from chronic intestinal inflammation with ulceration.]

Pneumonia is the most frequent pulmonary lesion; it may be single or

double. It was found in 18 of the 99 cases of Woodward, and in 21 out

of H. A. Allen's 41 cases. Inflammation of the pleura is not

infrequent. The brain and its membranes may be congested, and fluid is

found in the subarachnoid space, in some instances in cases which have

had a sudden termination. The cornea is ulcerated, and the eye

destroyed by opening of the anterior chamber in a small proportion of

cases. The sloughing process begins in the lower part of the cornea and

in the sclerotic.

SYMPTOMS.--When chronic intestinal catarrh succeeds the acute form, the

transition is marked by the disappearance of fever and an amelioration

of all the symptoms, with apparent recovery. The patient begins to go

about, but diarrhoea returns whenever there is any unusual fatigue or

excess in eating. In some cases there is no improvement in the

diarrhoea, but in the general symptoms only. When the malady is chronic

from the beginning, the onset is characterized by symptoms of

indigestion and occasional diarrhoea, which become more and more

pronounced according to the severity of the illness.

Mild forms of catarrh have constipation, or diarrhoea alternates with a

normal or constipated state of the bowels. The form in which

constipation is continuous is associated with mechanical stasis from

liver and heart lesions and with the gouty and uric-acid diathesis. The

mucous membrane is in a state of passive hyperæmia, an excess of mucus

being the product of the inflammatory process. Mucus coats the lining

tunic, lessens its irritability, interferes with digestion and

absorption, and acts as a ferment, exciting decomposition in the food.

The bowel is atonic and is distended with contained gas; there is great

feebleness of peristaltic contractions.

Intestinal indigestion and constipation are therefore the symptoms of

this form. The signs of indigestion occur one to three hours after

eating, according to the location of the maximum of catarrh and the

time taken by the food to reach this point. They are a sense of fulness

or distress in the abdomen from gaseous distension, slight colicky

pains, and a rumbling of gas, which may be prolonged during several

hours after a meal. The constipation is indicated by the spontaneous

passage of dry masses or scybalæ coated with layers of mucus which are

clear or cloudy, or the mucus may be intimately mixed with solid

matter. Pure mucus is also expelled without fecal matter. There may be

no stool without a purgative, and then softened matter with scybalæ and

mucus is passed. Altered mucus in the form of membraniform shreds or

cylinders occasionally pass in the so-called membranous enteritis.

The abdomen is full and not sensitive to pressure. The tongue is coated

and usually pale and flabby. In appearance the patient exhibits a

general want of tone; the skin is white or muddy, the muscles are soft,

and the expression indicates the depression of spirits, the lassitude,

and the inertia which he feels. Hemorrhoids are very likely to {707}

exist. Such a condition may last for months or years without much

change. Under proper treatment recovery may take place, but if entirely

neglected or improperly treated the disease inevitably becomes worse.

In a second mild form there is no permanent disease, only an

impressionability of the mucous membrane of the bowel to causes which

induce hyperæmia and excessive secretion ending in diarrhoea. Exposure

to cold, fatigue, or slight indiscretions in diet may bring it on; even

an emotional cause may do it. The attacks last one or several days, and

may at times assume some gravity. This predisposition to diarrhoea

lasting through a lifetime is analogous to the tendency to inflammation

of the nasal and other mucous membranes.

In severer and typical forms the symptoms point to permanent lesions.

The tongue is smooth, shining, or glazed, sometimes with a central

brown streak, but it may be also pale and covered with a white coat.

The appetite is diminished or lost, or it is capricious, craving

unsuitable food. If there is no gastric catarrh, the chief distress

does not come until some hours after eating, but the taking of food

sometimes excites pain and brings on an evacuation of the bowels

through reflex influence.

There may be slight tympanites or a retracted abdomen. The imperfect

digestion of food and the fermentation of the intestinal contents

develop gas which keeps the abdomen distended and causes slight pains

and borborygmi. Pain may, however, be entirely absent. A feeling of

abdominal soreness is not unusual; it is increased by coughing,

sneezing, or any sudden movement. Sensibility to pressure is usually

wanting; when it exists it is found along the line of the colon in most

cases.

The diarrhoea is the characteristic symptom. The number of the stools

varies from one to eight in twenty-four hours; four is about the

average number. They occur usually in the early morning hours, from two

to six o'clock, but food may at any time bring on peristaltic

contraction, so that a motion after every meal is not uncommon. In

quantity there is much variability; two to four ounces of fluid matter

is the rule perhaps, but a very much larger amount than this is often

passed with each evacuation. As a rule, the larger the quantity of

fluid the more extensive is the catarrh and the more advanced are the

lesions. The matters passed are composed chiefly of fecal matter

varying in consistence from a solid or semi-solid mass to a watery

fluid. In the soft stool, like thickened gruel, the consistence is due

to the presence of mucus; in the thinner evacuation water is the chief

element. Liquid stools are sometimes frothy. In color the dejecta are

brown, yellow, red, green, slate-color, or white. They may be colored

dark by medicines, as iron or bismuth, or by blood. The presence of

blood gives a pinkish, bright-red, dark-brown, or black color,

depending upon the amount of blood and the changes it has undergone in

the bowel from a longer or shorter retention. Blood, when it comes from

the rectum, is in bright-red streaks or small coagula. When its source

is higher up, it is much altered, being dark and granular.

Coffee-ground sediment in a fluid stool is blood from the upper part of

the intestine or stomach. The spreading of an ulcer may open a vessel

of some size, and a fatal hemorrhage follow. A yellow tint like that of

a child's movement may arise from a mixture of pus and fecal matter.

Pus, as a milky or creamy fluid which may be {708} streaked with blood,

is a frequent appearance in disease of the rectum and sigmoid flexure.

The odor of the stools is fecal, sour, or sickening from fermentation

or offensive from decomposition. In bad forms of chronic diarrhoea in

children the black watery stools have a most offensive odor.

Mucus is the most constant ingredient of the diarrhoeal stool, and is

in itself a sufficient evidence of catarrh, as it is not seen in normal

stools except as a temporary phenomenon. It is present in flakes in

watery evacuations, giving a jelly-like character to the fluid if it is

in excess, or it is mixed with semi-solid feces. Pure mucus may be

passed, if the catarrh is low down, in clear, glairy, or opaque masses.

The frog's-egg or boiled-sago particles supposed by Niemeyer and others

to point to follicular ulceration, and by Traube to be the swallowed

bronchial secretion, are said by Virchow to be partly-digested starch,

and also by Nothnägel to be of vegetable nature.[33] The stools may

contain small yellow or brownish masses which are mucoid in nature,

being yellow from bile-staining. Pavement epithelial cells are found in

the coating of mucus around a hard fecal lump. Cylindrical epithelium

is passed uncolored or stained with bile. These cells are separated,

and are deformed and shrunken, with a granular protoplasm and

indistinct nucleus. Goblet-cells are also seen. Round cells in the form

of mucus-corpuscles or giant-cells are mixed with shreds of mucus or

float in the thin stools. Crystals of triple phosphate, of neutral

phosphate, oxalate of lime, and other lime salts, and of cholesterin,

are also seen.

[Footnote 33: _Virchow's Archiv_, v. S. 329; Nothnägel, "Zur Klinik der

Darmkrankheiten," _Zeitschrift für klin. Med._, iii., 1881, p. 241.]

Micrococci and bacteria have no pathological importance; they are seen

in different diseases and in health.

Unaltered food may be expelled (lientery) by rapid peristaltic

movements. But the microscope will detect what cannot be seen by the

eye--unaltered starch-granules, filaments of meat-fibre, or fat in

drops or in needle-shaped or feathery crystals.

The nervous system is disturbed after a certain time. There is languor,

with depression of spirits, mental weariness, and inaptitude for work

of any kind. The patient is querulous, morose; his sleep is restless,

but sometimes profound until disturbed by the demand to empty the

bowel. Melancholia is attributed to this as to other diseases of the

abdomen, but their influence in producing insanity is doubtful.[34]

[Footnote 34: Griesinger, _Mental Path. and Therap._, Am. ed., New

York, 1882, pp. 137, 138.]

No decided symptoms are exhibited in the respiratory and circulatory

systems. Even slight exertion will cause shortness of breath and

increased frequency or palpitation of the heart. This irritability of

the heart is a marked feature of the disease.[35]

[Footnote 35: DaCosta found that of 200 cases of irritable heart, 61

were in patients who had suffered from or still had diarrhoea (_Am.

Journ. Med. Sci._, vol. lxi., 1871, p. 37).]

The appearance of the urine is normal; it may be abundant, with

phosphatic deposit, or it is scanty and high-colored. In bad cases

albumen and casts have been found.[36]

[Footnote 36: Alonzo Clark, "Proc. of New York Path. Soc.," _Med. and

Surg. Reports_, vol. ix., 1862-63, p. 312.]

The symptom indicative of atrophy of the mucous membrane is believed by

Nothnägel to be the persistent passage of one soft, unformed stool

daily. Mucus and fat, which diminish the consistence of the stool, are

{709} excluded by microscopical examination. One stool daily shows that

there is no exaggerated peristalsis which hurries the food along so

rapidly that water cannot be absorbed.[37]

[Footnote 37: Nothnägel, "Zur Klinik der Darmkrankheiten," _Zeitschrift

für klin. Med._, iv., 1882, p. 422.]

PROGRESS AND TERMINATION.--As the disease advances it is marked by

progressive emaciation and debility. The skin gradually acquires great

pallor, indicating profound anæmia. The loss of flesh is very rapid. An

exacerbation of the disease will in a few days cause the cheeks to grow

hollow, the eyes to appear sunken with dark rings around them. In all

cases of long duration the progress is intermittent; frequent relapses

occur from which the patient may rally and regain a moderate degree of

flesh. Recovery may take place in weeks or months--eighteen months is

the average duration[38]--but in most instances a tendency to a

recurrence of the diarrhoea from cold, fatigue, or indiscretions in

diet will continue throughout life. An incomplete recovery may take

place by the cessation of the diarrhoea and formation of a stricture

from the healing of an intestinal ulcer. In the worst cases there is no

rule as to the rapidity or regularity of the march of the disease.

[Footnote 38: C. H. Ralfe, Seamen's Hospital, London: see Aitken's

_Handbook of Treatment_, New York, 1882, p. 116.]

When the advance is toward a fatal issue the emaciation progresses

until it becomes extreme; nothing but skin and bone are left. The

cuticle is hard and dry, pale or brownish in color. The muscular

strength is so reduced that the patient is unable to move from bed. The

voice may sink to a whisper. The nervous depression and moroseness

assumes a more marked character. Among the soldiers during the Civil

War who had undergone great privations with insufficient or improper

diet the mental phenomena were those of dementia.[39] In them the

disease was modified also by the symptoms of scurvy and malarial

poisoning.

[Footnote 39: W. Kempler, "Entero-Colitis," _Am. Journ. of Med. Sci._,

vol. lii., 1866, p. 337.]

Fever is seen in the late stages; it is nocturnal at first, and later

assumes the features of hectic. The pulse grows more frequent and

thready; aphthous deposits appear on the inside of the mouth and

pharynx. Toward the end the discharges may become more frequent and

very abundant; they are more fluid, lighter colored or black, with

floating particles of blood and mucus. There may be a loss of odor or

they may have a cadaveric smell.

Death takes place in a few weeks or after years of alternate suffering

and relief. The immediate causes of death are exhaustion, marasmus from

starvation, collapse from perforation of an intestinal ulcer and

consecutive peritonitis, syncope from sudden exertion, pneumonia, or

acute pulmonary congestion, pleurisy, or subarachnoid effusion in the

brain, with coma and convulsions.

COMPLICATIONS.--General dropsy results from the hydræmia and languid

circulation of the late period of the disease. Other causes of this

symptom are coincident diseases of the liver, kidney, or the malarial

cachexia. Oedema of one extremity follows a thrombus in the crural

vein. Chronic bronchitis and pulmonary phthisis are sometimes met with.

Acute pneumonia[40] and acute pulmonary congestion are occasional {710}

causes of death. Peritonitis may occur with and without perforation.

The latter variety begins as a local inflammation of subacute or

chronic nature, and spreads slowly until it becomes general. Extensive

adhesions and abundant accumulations of serous, sero-purulent, or

purulent fluid in the abdominal cavity result.

[Footnote 40: Pneumonia (8 double and 12 single) occurred in 20 out of

41 fatal cases reported by Harrison Allen, _Tr. Path. Soc. Philada._,

1867, vol. ii. p. 161.]

The causal conditions which have been enumerated may be considered as

complications. They are tuberculosis, Bright's disease, cirrhosis of

the liver, abdominal tumors, scurvy, tubercular and other neoplasms in

the wall of the intestine; attacks of intercurrent, intermittent, or

remittent fever arise from the malarial influence to which the

intestinal catarrh is due. These fevers and rheumatism and

pseudo-rheumatism are complications in soldiers from the exposure to

malarial influences and to cold and dampness.[41]

[Footnote 41: Woodward, _op. cit._, p. 495.]

Ulceration of the cornea, escape of the aqueous humor, and collapse of

the eye were observed in quite a number of cases occurring among

soldiers.[42]

[Footnote 42: Elliot Coues, _Med. and Surg. Reporter_, Philada., 1863,

vol. x. p. 207, and H. Allen, _Tr. Path. Soc. Philada._, 1867, vol. ii.

p. 161.]

SEQUELÆ.--The alteration of structure from long-standing inflammation

leaves the mucous membrane prone to recurrence of inflammation. Chronic

intestinal indigestion and permanent malnutrition come from the same

cause. The glandular and lymphatic structures of the intestine and the

mesenteric glands are so changed by disease that they imperfectly

perform their function. Tabes mesenterica is the ultimate phase of this

change. Constipation succeeds chronic diarrhoea, and is due to atony of

the muscular wall from long-continued distension, and probably from

degeneration of the muscular structure. A more serious cause of

constipation, and sometimes of intestinal obstruction, is found in

stenosis of the bowel from the healing of the ulcers of long-standing

chronic catarrh. Stricture is more common in the colon, sigmoid

flexure, and rectum. How frequently such a result follows the

cicatrization of intestinal ulcers is not definitely known. Woodward

concludes from a careful search of books and pathological museums that

stenosis from this cause is very rare.[43] Syphilis is the most common

cause of ulcer. Local or general peritonitis leads to the formation of

adhesions or fibrous bands uniting neighboring links of intestine. By

the contracting of these narrowing of the intestinal canal may result.

Paralysis, hemiplegia, paraplegia, etc. have been found to follow upon

diarrhoea of long standing.[44]

[Footnote 43: Woodward, _op. cit._, p. 504.]

[Footnote 44: Potain, "Parésie des Membres inférieurs ayant succedé à

un Catarrhe gastro-intestinal," _Rev. de thérap. Med.-Chir._, Paris,

1880, xlvii. p. 562; "Paralysis spinale sécondaire à une Diarrhée

chronique," _Journ. des Conn. méd. Prat._, Paris, 1880, 3, S. ii. p.

57.]

DIAGNOSIS.--The mild form of chronic catarrh of the intestines

associated with constipation has been confounded with hepatic

disorders, and the obscure symptoms attending it have been attributed

to excess or diminution of bile, and medicines to regulate the liver

have been given accordingly. In the absence of lesions in the liver, in

cases where symptoms such as have been described have preceded death,

the opinion is not justified that disease of this organ has existed. On

the contrary, alteration in the mucous membrane is almost always found,

which points to the true nature of the disease. The diagnosis is based

upon the accompanying {711} gastric catarrh and upon the symptoms of

intestinal indigestion and malnutrition. Greater sensibility to

pressure over the right hypochondrium and along the line of the colon,

pain one to two hours after eating, with distension of the abdomen, the

passage of well-formed and somewhat indurated feces mixed or coated

with mucus, are symptoms peculiar to these mild forms.

The tendency to diarrhoea from cold, indigestible food, etc. which

marks the second form of mild catarrh is easily recognized.

The characteristic symptom of the severe form is the persistent

diarrhoea. Paroxysmal pains, tympanites and rumbling of gas, tenderness

on pressure over the colon, the alternate periods of improvement and

relapse, with the constitutional signs of impaired nutrition and

progressive anæmia and debility, point out the nature and the seat of

the lesion with sufficient clearness. It is futile to attempt to

distinguish chronic intestinal diarrhoea from chronic dysentery. The

lesions of the two conditions are essentially the same; it depends upon

the fancy as to which name is given to the lesions described here under

the title chronic intestinal catarrh. A greater amount of blood and

mucus in the stool with tenesmus would more properly be called

dysenteric, but the same case may present at one time diarrhoeal, at

another dysenteric, symptoms.

Primary must be distinguished from secondary diarrhoea. Therefore the

liver, heart, and lungs must be examined to discover diseases which

might cause portal congestion. Any constitutional malady may be a cause

and an explanation: tuberculosis or pulmonary phthisis stands first in

its influence; next, chronic Bright's disease, septicæmia, scurvy,

syphilis, and gout are attended by intercurrent diarrhoea. If all

general disease can be excluded and the morbid process be located in

the intestine alone, its cause may be known by studying the habits,

occupation, and diet of the patient. Foreign bodies--hardened feces,

gall-stones, fruit-stones, etc.--are possible causes which the history

of the case may point to.

Having located the disease in the intestine and decided upon its

primary or secondary nature, it remains to determine more precisely

(_a_) the locality of the lesion, and (_b_) the stage of the

inflammatory process.

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