Chapter XXXV: Front Matter (35)

{566} Gastric cancer often causes important secondary changes in the coats and the lumen of the stomach. In the neighborhood of the tumor are often found hypertrophy of the muscular coat and fibrous thickening of the submucous coat. Polypoid hypertrophy of the mucous membrane near the cancer is not rare. Not only near the tumor, but over the whole stomach, chronic catarrhal gastritis usually exists.

The most important alterations are those dependent upon obstruction of the orifices of the stomach. This obstruction may be caused either by a tumor encroaching upon the orifice or by an annular thickening of the walls of the orifices. Even without apparent stenosis, destruction of the muscular layer at or near the pylorus may be an obstacle to the propulsion of the gastric contents into the duodenum. As a result of obstruction of the pyloric orifice the stomach becomes dilated, sometimes enormously, so as to occupy most of the abdominal cavity. The walls of the dilated stomach, particularly the muscular coat, are usually thickened, but exceptionally they are thinned. Sometimes with pyloric stenosis the stomach is reduced in size. This occurs particularly when a scirrhous growth extends diffusely from the pyloric region over a considerable part of the stomach. Obstruction of the cardiac orifice or in the oesophagus leads to atrophy of the stomach, although here also there are exceptions. Above the obstruction the oesophagus is often dilated. An existing obstruction may be reduced or removed by ulceration or sloughing of the tumor.

Both dilatation and contraction of the stomach may attend gastric cancer without any involvement of the orifices of the stomach in the cancerous growth. The cavity of the stomach may be so shrunken by scirrhous thickening and contraction of the gastric walls that it will hardly contain a hen's egg. Irregular deformities in the shape of the stomach, such as an hour-glass shape and diverticular recesses, may be caused by gastric cancer.

Changes in the shape of the stomach and the weight of the tumor may cause displacements of pyloric cancers, so that these tumors have been found in nearly all regions of the abdomen, and even in the true pelvis.[86] Such displaced cancers usually contract adhesions with surrounding parts.

[Footnote 86: Lebert, _op. cit._, p. 420.]

It is not necessary to dwell upon the formation of adhesions which may bind the stomach to nearly all of the abdominal organs, most frequently to the liver, the pancreas, the intestine, and the anterior abdominal wall. Adhesions of pyloric cancers are found in at least two-thirds of the cases, and probably oftener.[87]

[Footnote 87: Gussenbauer and V. Winiwarter found adhesions recorded in 370 out of 542 pyloric cancers. In considering the propriety of resection of gastric cancers it has become a matter of importance to know in what proportion of cases adhesions are present. I agree with Ledderhose and with Rydygier in believing that adhesions are present oftener than appears from Gussenbauer and V. Winiwarter's statistics. The fact that adhesions are not noted in post-mortem records of gastric cancer cannot be considered proof of their absence. Little has been done in the study of gastric cancer from a surgical point of view. Metastases and adhesions were absent in only 5 out of 52 cases of pyloric cancer in which either pylorectomy or exploratory laparotomy was performed (Rydygier).]

Cancer of the stomach in the majority of cases is accompanied with {567} metastases in other parts of the body. In 1120 cases of gastric cancer secondary cancers were present in 710, or 63.4 per cent., and absent in 410, or 36.6 per cent.[88] In about two-thirds of the cases, therefore, secondary deposits were present.

[Footnote 88: These cases are from Habershon, _op. cit._; Lebert, _op. cit._; _Trans. N.Y. Path. Soc._, vol. i.; and Gussenbauer and Von Winiwarter, _loc. cit._]

In order to determine the relative frequency of the secondary deposits in various organs of the body, I have constructed the following table, based upon an analysis of 1574 cases of cancer of the stomach in which the situation of the metastases were given:[89]

Lymphatic glands. 551 35.0%
Liver. 475 30.2%
Peritoneum, omentum, and intestine. 357 22.7%
Pancreas. 122 7.8%
Pleura and lung. 98 6.2%
Spleen. 26 1.7%
Brain and meninges. 9 0.6%
Other parts of the body. 92 5.8%

[Footnote 89: These cases include, in addition to those cited in the preceding foot-note, those of Dittrich (_Prager Vierteljahrschr._, vol. xvii.), Wrany (_ibid._, vols. xciv. and xcix.), Katzenellenbogen (_op. cit._), and Lange (_op. cit._). Metastases in the intestine formed only a small number of those under the heading peritoneum, omentum, and intestine, but as they were all included together in Gussenbauer's large statistics, the intestinal metastases could not well be placed separately. In 673 cases the peritoneum and omentum were cancerous in 21.7 per cent.]

Secondary cancerous deposits are probably even more frequent in the lymphatic glands than appears from the table. In 1153 cases of gastric cancer in which the situation of the affected lymphatic glands is specified, the abdominal glands, and chiefly those near the stomach, were the seat of cancer in 32½ per cent. In Lange's 210 cases the cervical glands were affected in 4.3 per cent. In other statistics this percentage is much smaller. In nearly one-third of the cases there are secondary cancers in the liver. These may attain an enormous size in comparison with the tumor of the stomach. Cancer of the peritoneum and of the omentum is found in about one-fifth of the cases of gastric cancer. The spleen is rarely involved, except by continuous growth of a cancer of the fundus or in cases of widespread distribution of cancer through the aortic circulation. Cancer of the liver increases the liability to metastases in the lungs, but the latter may be present without any cancerous deposits in the liver. Secondary cancers may be present in the suprarenal capsules, the kidneys, the ovaries, the heart, the thoracic duct, the bones, the skin, etc. In an interesting case reported by Finlay[90] the subcutaneous tissue of the trunk was thickly studded with small nodules, of which two were excised during life and found to be cylindrical epitheliomata. This led to the diagnosis of a primary tumor of the same nature in the stomach or in the intestine. At the autopsy was found a cylindrical epithelioma of the stomach which had not given rise to characteristic symptoms. Secondary cancer of the intestine is rare if the deposits in the peritoneal coat be {568} excepted. Several cancerous ulcers or multiple cancerous nodules may be found along the intestinal tract, involving the mucous and the submucous coats.[91] These metastases seem best explained by the theory of implantation of cancerous elements which have been carried from the primary growth in the stomach into the intestine. In some of the cases the idea of multiple primary cancers may also be entertained.

[Footnote 90: _Trans. Path. Soc. London_, vol. xxxiv. p. 102. Unfortunately, in Röseler's case of multiple skin-cancers with an ulcerated cancer of the stomach no microscopical examination of the skin-nodules was made. The interpretation of this case is therefore doubtful (_Virchow's Archiv_, Bd. 77, p. 372).]

[Footnote 91: Cases in point are recorded by Wrany (_loc. cit._), Blix (_Virchow u. Hirsch's Jahresbericht_, 1876, ii. p. 207), Lange, Katzenellenbogen, and Lebert.]

It is not rare for gastric cancer to cause secondary deposits in the stomach itself. Sometimes it is difficult to decide which of two or more cancers in the stomach is the primary growth, as in Ripley's case of ulcerated cancer of the cardiac orifice with a similar growth around the pyloric orifice.[92] It is probable that in very rare instances multiple primary cancers may develop in the stomach.

[Footnote 92: J. H. Ripley, _Trans. N.Y. Path. Soc._, vol. iv. p. 121. Maurizio has also reported a case of scirrhous cancer of the cardia with scirrhous cancer of the pylorus (_Annal. univ. di Medicina_, Oct., 1869). A similar case was observed by Barth (_Gaz. hebdom._, 1856, No. 24, p. 424).]

Cancerous metastases are produced by the transportation of cancerous elements by the lymphatic current or by the blood-current. In a number of instances the portal vein or some of the branches which help to form it have been found plugged with a cancerous mass which may or may not be organized.[93] The cancer in these cases has burst through the walls of the vessel into the lumen, where it may grow both in the direction and against the direction of the current. On serous surfaces, and probably also, although rarely, on mucous surfaces, secondary cancers may develop from cancerous particles detached from a parent tumor and scattered over the surface as a kind of seminium.

[Footnote 93: Cases of this kind have been reported with especial fulness by Spaeth (_Virchow's Archiv_, Bd. 35, p. 432), Acker (_Deutsches Arch. f. kl. Med._, Bd. 11, p. 173), and Audibert (_De la Généralisation du Cancer de l'Estomac_, Paris, Thesis, 1877).]

Mention has already been made of the invasion of parts adjacent to the stomach by the continuous growth of gastric cancer. In this way lymphatic glands, the liver, the pancreas, the omenta, the transverse colon, the spleen, the diaphragm, the anterior abdominal wall, the vertebræ, the spinal cord and membranes, and other parts may be involved in the cancerous growth.

Under the head of Complications reference has already been made to various lesions which may be associated with gastric cancer. As regards the manifold complications caused by perforation of gastric cancer, in addition to what has already been said the article on gastric ulcer may be consulted. In general, the various fistulous communications caused by gastric cancer are less direct than those produced by gastric ulcer. The wasting of various organs of the body in cases of gastric cancer may be found on post-mortem examination to be extreme. Habershon mentions a case in which the heart of a woman forty years old weighed only 3½ ounces after death from cancer of the pylorus. As in other profoundly anæmic states, the embryonic or lymphoid alteration of the marrow of the bones is often present in gastric cancer.

PATHENOGENESIS.--The problems relating to the ultimate causation and origin of gastric cancer belong to the pathenogenesis of cancer in general. Our knowledge with reference to these points is purely hypothetical. It will suffice in this connection simply to call attention to {569} Virchow's doctrine, that cancer develops most frequently as the result of abnormal or of physiological irritation, hence in the stomach most frequently at the orifices; and to Cohnheim's theory, that cancer as well as other non-infectious tumors originate in abnormalities in development, more specifically in persistent embryonic cells. According to the latter view, gastric cancer develops only in those whose stomachs from the time of birth contain such embryonic remnants. These unused embryonic cells may lie dormant throughout life or they may be incited to cancerous growth by irritation, senile changes, etc. According to Cohnheim's theory, the orifices of the stomach are the most frequent seat of cancer on account of complexity in the development of these parts.

For a full consideration of these theories the reader is referred to the section of this work on General Pathology.

DIAGNOSIS.--The presence of a recognizable tumor in the region of the stomach outweighs in diagnostic value all other symptoms of gastric cancer. The detection of fragments of cancer in the vomit or in washings from the stomach is of equal diagnostic significance, but of rare applicability. The discovery of secondary cancers in the liver, in the peritoneum, or in lymphatic glands may render valuable aid in diagnosis. Of the local gastric symptoms, coffee-ground vomiting is the most important. The relation between the local and the general symptoms may shed much light upon the case. While anorexia, indigestion, vomiting, and epigastric pain and tenderness point to the existence of a gastric affection, the malignant character of the affection may be surmised by the development of anæmia, emaciation, and cachexia more rapid and more profound than can be explained solely by the local gastric symptoms. The value to be attached in the diagnosis of gastric cancer to the absence of free hydrochloric acid from the contents of the stomach must still be left sub judice. The age of the patient, the duration, and the course of the disease are circumstances which are also to be considered in making the diagnosis of gastric cancer. These symptoms of gastric cancer have already been fully considered with reference to their presence and absence and to their diagnostic features.

It remains to call attention to the differential diagnosis between gastric cancer and certain diseases with which it is likely to be confounded. The points of contrast which are to be adduced relate mostly to the intensity and the frequency of certain symptoms. There is not a symptom or any combination of symptoms of gastric cancer which may not occur in other diseases. Hence the diagnosis is reached by a balancing of probabilities, and not by any positive proof. Notwithstanding these difficulties, gastric cancer is diagnosed correctly in the great majority of cases, although often not until a late stage of the disease. Errors in diagnosis, however, are unavoidable, not only in cases in which the symptoms are ambiguous or misleading, but also in cases in which all the symptoms of gastric cancer, including gastric hemorrhage and tumor, are present, and still no gastric cancer exists. Cases of the latter variety are of course rare.

In the absence of tumor the diseases for which gastric cancer is most liable to be mistaken are gastric ulcer and chronic gastric catarrh. In the following table are given the main points of contrast between these three diseases: {570}

GASTRIC CANCER. | GASTRIC ULCER. | CHRONIC CATARRHAL
| | GASTRITIS.
| |
1. Tumor is present | 1. Tumor rare. | 1. No tumor.
in three-fourths of | |
the cases. | |
| |
2. Rare under forty | 2. May occur at any | 2. May occur at any
years of age. | age after childhood. | age.
| Over one-half of the |
| cases under forty |
| years of age. |
| |
3. Average duration | 3. Duration | 3. Duration
about one year, | indefinite; may be | indefinite.
rarely over two | for several years. |
years. | |
| |
4. Gastric hemorrhage| 4. Gastric hemorrhage| 4. Gastric
frequent, but rarely | less frequent than in| hemorrhage rare.
profuse; most common | cancer, but oftener |
in the cachectic | profuse; not uncommon|
stage. | when the general |
| health is but little |
| impaired. |
| |
5. Vomiting often has| 5. Vomiting rarely | 5. Vomiting may or
the peculiarities of | referable to | may not be present.
that of dilatation of| dilatation of the |
the stomach. | stomach, and then |
| only in a late stage |
| of the disease. |
| |
6. Free hydrochloric | 6. Free hydrochloric | 6. Free hydrochloric
acid usually absent | acid usually present | acid may be present
from the gastric | in the gastric | or absent.
contents in cancerous| contents. |
dilatation of the | |
stomach. | |
| |
7. Cancerous | 7. Absent. | 7. Absent.
fragments may be | |
found in the washings| |
from the stomach or | |
in the vomit (rare). | |
| |
8. Secondary cancers | 8. Absent. | 8. Absent.
may be recognized in | |
the liver, the | |
peritoneum, the | |
lymphatic glands, and| |
rarely in other parts| |
of the body. | |
| |
9. Loss of flesh and | 9. Cachectic | 9. When
strength and | appearance usually | uncomplicated,
development of | less marked and of | usually no
cachexia usually more| later occurrence than| appearance of
marked and more rapid| in cancer; and more | cachexia.
than in ulcer or in | manifestly dependent |
gastritis, and less | upon the gastric |
explicable by the | disorders. |
gastric symptoms. | |
| |
10. Epigastric pain | 10. Pain is often | 10. The pain or
is often more | more paroxysmal, more| distress induced by
continuous, less | influenced by taking | taking food is
dependent upon taking| food, oftener | usually less severe
food, less relieved | relieved by vomiting,| than in cancer or in
by vomiting, and less| and more sharply | ulcer. Fixed point
localized, than in | localized, than in | of tenderness
ulcer. | cancer. | usually absent.
| |
11. Causation not | 11. Causation not | 11. Often referable
known. | known. | to some known cause,
| | such as abuse of
| | alcohol,
| | gormandizing, and
| | certain diseases, as
| | phthisis, Bright's
| | disease, cirrhosis
| | of the liver, etc.
| |
12. No improvement or| 12. Sometimes a | 12. May be a history
only temporary | history of one or | of previous similar
improvement in the | more previous similar| attacks. More
course of the | attacks. The course | amenable to
disease. | may be irregular and | regulation of diet
| intermittent. Usually| than is cancer.
| marked improvement by|
| regulation of diet. |

{571} The diagnosis between gastric cancer and gastric ulcer is more difficult than that between cancer and gastritis, and sometimes the diagnosis is impossible. The differential points mentioned in the table are of very unequal value. An age under thirty, profuse hemorrhage, and absence of tumor are the most important points in favor of ulcer; tumor, advanced age, and coffee-ground vomiting continued for weeks are the most important points in favor of cancer. As cancer may have been preceded by ulcer or chronic gastritis for years, it is evidently unsafe to trust too much to the duration of the illness. As has already been said, it is best to place no reliance in the differential diagnosis upon the character of the pain. Any peculiarities of the vomiting, the appetite, or the digestion are of little importance in the differential diagnosis. Cachexia is of more importance, but it is to be remembered that ulcer, and even chronic gastritis in rare instances, may be attended by a cachexia indistinguishable from that of cancer. Cases might be cited in which very decided temporary improvement in the symptoms has been brought about in the course of gastric cancer, so that too much stress should not be laid upon this point. Enough has been said under the Symptomatology with reference to the diagnostic bearings of the absence of free hydrochloric acid from the stomach, of the presence of cancerous fragments in fluids from the stomach, and of secondary cancers in different parts of the body.

One must not lose sight of the fact that the whole complex of symptoms, the order of their occurrence, and the general aspect of the case, make an impression which cannot be conveyed in any diagnostic table, but which leads the experienced physician to a correct diagnosis more surely than reliance upon any single symptom.

In the early part of the disease there may be danger of confounding gastric cancer with nervous dyspepsia or with gastralgia, but with the progress of the disease the error usually becomes apparent. What has already been said concerning the symptomatology and the diagnosis of gastric cancer furnishes a sufficient basis for the differential diagnosis between this disease and nervous affections of the stomach.

Chronic interstitial gastritis or fibroid induration of the stomach cannot be distinguished with any certainty from cancer of the stomach. Fibroid induration of the stomach is of longer duration than gastric cancer, and it is less frequently attended by severe pain and hemorrhage. Sometimes a hard, smooth tumor presenting the contours of the stomach can be felt, but this cannot be distinguished from diffuse cancerous infiltration of the stomach.

Non-malignant stenosis of the pylorus is of longer duration than cancer of the pylorus. The symptoms of dilatation of the stomach are common to both diseases. Cicatricial stenosis is the most common form of non-malignant pyloric stenosis. This is usually preceded by symptoms of gastric ulcer which may date back for many years. Non-malignant stenosis more frequently occurs under forty years of age than does cancer. The diagnosis between malignant and non-malignant stenosis of the pylorus is in some cases impossible.

Although the surest ground for the diagnosis of gastric cancer is the appearance of tumor, there are cases in which it is difficult to decide whether the tumor really belongs to the stomach, and even should it be {572} established that the tumor is of the stomach, there may still be doubt whether or not it is cancerous.

The diagnosis between cancerous and non-cancerous tumors of the stomach, such as sarcoma, fibroma, myoma, etc., hardly comes into consideration. The latter group of tumors rarely produces symptoms unless the tumor is so situated as to obstruct one of the orifices of the stomach. Even in this case a positive diagnosis of the nature of the tumor is impossible.

Of greater importance is the distinction between cancerous tumors of the stomach and tumors produced by thickening of the tissues and by adhesions around old ulcers of the stomach. Besides the non-progressive character of the small and usually indistinct tumors occasionally caused by ulcers or their cicatrices, the main points in diagnosis are the age of the patient and the existence, often for years, of symptoms of gastric ulcer antedating the discovery of the tumor. The long duration of symptoms of chronic catarrhal gastritis and of dilatation of the stomach is also the main ground for distinguishing from cancer a tumor produced by hypertrophic stenosis of the pylorus.

Tumors of organs near the stomach are liable to be mistaken for cancer of the stomach. The differential diagnosis between gastric cancer on the one hand, and tumors of the left lobe of the liver and tumors of the pancreas on the other hand, is often one of great difficulty.

Tumors of the liver are generally depressed by inspiration, whereas tumors of the stomach are much less frequently affected by the respiratory movements. The percussion note over tumors of the liver is flat, while a tympanitic quality is usually associated with the dulness over tumors of the stomach. Light percussion will often bring out a zone of tympanitic resonance between the hepatic flatness and the dulness of gastric tumors. Gastric tumors are usually more movable than hepatic tumors. By palpation the lower border of the liver can perhaps be felt and separated from the tumor in case this belongs to the stomach. Most of the points of distinction based upon these physical signs fail in cases in which a gastric cancer becomes firmly adherent to the liver. The basis for a diagnosis must then be sought in the presence or the absence of marked disturbance of the gastric functions, particularly of hæmatemesis, vomiting, and dilatation of the stomach. On the other hand, ascites and persistent jaundice would speak in favor of hepatic cancer. There are cases in which the diagnosis between hepatic cancer and gastric cancer cannot be made. This is especially true of tumors of the left lobe of the liver, which grow down over the stomach and compress it, and which are accompanied by marked derangement of the gastric functions. The frequency with which cancer of the stomach is associated with secondary cancer of the liver should be borne in mind in considering the diagnosis.

There are certain symptoms which in many cases justify a probable diagnosis of cancer of the pancreas, but this disease can rarely be distinguished with any certainty from cancer of the stomach. The situation of the tumor is the same in both diseases. With pancreatic cancer the pain is less influenced by taking food, the vomiting is less prominent as a symptom, and anorexia, hæmatemesis, and dilatation of the stomach are less common than with gastric cancer. Of the positive symptoms in {573} favor of cancer of the pancreas, the most important are jaundice, fatty stools, and sugar in the urine. Of these symptoms jaundice is the most common.

Should there be any suspicion that the tumor is caused by impaction of feces, a positive opinion should be withheld until laxatives have been given.

Mistakes may occur as to the diagnosis between gastric cancer and tumors of the omenta, the mesentery, the transverse colon, the lymphatic glands, and even the spleen or the kidney. Encapsulated peritoneal exudations near the stomach have been mistaken for gastric cancer. Where a mistake is likely to occur each individual case presents its own peculiarities, which it is impossible to deal with in a general way. Of the utmost importance is a careful physical exploration of the characters and relations of the tumor, aided, if necessary, by artificial distension of the stomach or of the colon by gas (see page 549). No less important is the attentive observance of the symptoms of each case. In doubtful cases fluids withdrawn from the stomach by the stomach-tube should be carefully examined for cancerous fragments, and the gastric fluids may be tested for free hydrochloric acid by methods already described.

Pyloric cancers which receive a marked pulsation from the aorta sometimes raise a suspicion of aneurism, but the differential diagnosis is not usually one of great difficulty. Gastric cancer when it presses upon the aorta may simulate aneurism, not only by the presence of pulsation, but also by the existence of a bruit over the tumor. The tumor produced by aneurism is generally smoother and rounder than that caused by cancer. The pulsation of an aneurism is expansile, but the impulse of a tumor resting upon an artery is lifting and generally without lateral expansion. The impulse transmitted to a tumor resting upon the abdominal aorta may be lessened by placing the patient upon his hands and knees. Sometimes the tumor can be moved with the hands off from the artery, so that the pulsation momentarily ceases. A severe boring pain in the back, shooting down into the loins and the lower extremities, and not dependent upon the condition of the stomach, characterizes abdominal aneurism, but is not to be expected in gastric cancer. With aneurism gastric disorders and constitutional disturbance are much less prominent than with cancer of the stomach.[94]

[Footnote 94: In a case of pulsating pyloric cancer observed by Bierner the symptoms were much more in favor of aneurism than of cancer. The cancer had extended to the retro-peritoneal glands, which partially surrounded and compressed the aorta. There were marked lateral pulsation of the tumor, distinct systolic bruit, diminution of the femoral pulse, and severe lancinating pain in the back and sacral region. With the exception of vomiting, the gastric symptoms were insignificant. The patient was only thirty-three years old (Ott, _Zur Path. des Magencarcinoms_, Zurich, 1867, p. 71).]

Spasm of the upper part of the rectus abdominis muscle may simulate a tumor in the epigastric region. The diagnosis is made by noting the correspondence in shape and position between the tumor and a division of the rectus muscle, the superficial character of the tumor, the effect of different positions of the body upon the distinctness of the tumor, the tympanitic resonance over the tumor, and, should there still be any doubt, by anæsthetizing the patient, when the phantom tumor will disappear. Spasm of the rectus muscle has been observed in cases of cancer of the stomach.

{574} Attention is also called to the possibility of mistaking in emaciated persons the head of the normal pancreas, or less frequently the mesentery and lymphatic glands, for a tumor.[95] As emaciation progresses the at first doubtful tumor may even appear to increase in size and distinctness.

[Footnote 95: In the case of the late Comte de Chambord the diagnosis of gastric cancer was made upon what appeared to be very good grounds. No cancer, however, existed, and the ill-defined tumor which was felt during life in the epigastric region proved to be the mesentery containing considerable fat (Vulpian, "La dérnière Maladie de M. le Comte de Chambord." _Gaz. hebd. de Méd. et de Chir._, Sept. 14, 1883).]

It is sufficient to call attention to the danger of mistaking, in cases where the gastric symptoms are not prominent and no tumor exists, gastric cancer for pernicious anæmia, senile marasmus, or the chronic phthisis of old age. In some of these cases the diagnosis is impossible, but the physician should bear in mind the possibility of gastric cancer in the class of cases here considered, and should search carefully for a tumor or other symptom which may aid in the diagnosis.

The possibility of mistaking gastric cancer accompanied with peritoneal exudation for cirrhosis of the liver or for tubercular peritonitis is also to be borne in mind.

The diagnosis of the position of the cancer in the stomach can usually be made in cases of cancer of the cardia or of the pylorus. The symptoms diagnostic of cancer of the cardia are dysphagia, regurgitation of food, obstruction in the passage of the oesophageal bougie, and sinking in of the epigastric region in consequence of atrophy of the stomach. It has already been said that catheterization of the oesophagus does not always afford the evidence of obstruction which one would expect. Cancerous stenosis of the cardia is to be distinguished from cicatricial stenosis in this situation. The diagnosis is based upon the history of the case, which is generally decisive, and upon finding fragments of cancer in the tube passed down the oesophagus.

That the cancer is seated at the pylorus is made evident by the situation of the tumor (see p. 561) and by the existence of dilatation of the stomach. There are many more causes of stenosis of the pylorus than of stenosis of the cardia, so that, notwithstanding the absence of tumor, cancer of the cardia is often more readily diagnosticated than cancer of the pylorus.

The greatest difficulty in diagnosis is presented by cancers which do not obstruct the orifices of the stomach. Many of these cancers run an almost latent course so far as the gastric symptoms are concerned, and in case they produce no recognizable tumor and are unattended with hemorrhage, the difficulties in their diagnosis are almost insurmountable.

In general, a diagnosis of the particular form of cancer which is present cannot be made, nor is such a diagnosis of any practical value. In very exceptional cases such a diagnosis might be made by the examination of secondary subcutaneous cancers[96] or of fragments found in the fluids obtained from the stomach.

[Footnote 96: As for example, in Finlay's case, already referred to (p. 567). It is not safe to trust implicitly in this criterion, as the subcutaneous tumors may be of a different nature from the tumor of the stomach, as in an interesting case observed by Leube (_op. cit._, p. 125).]

Although the diagnosis of gastric cancer can generally be made before the death of the patient, unfortunately a positive diagnosis in the early stages of the disease is usually impossible. Should resection of cancer {575} of the stomach become a legitimate operation in surgery, it will be of the utmost importance to make the diagnosis in an early stage of the disease. Only those cases are suitable for resection in which there are no secondary deposits, the general health of the patient is in fair condition, and extensive adhesions have not been formed. It was to be hoped that the ingenious instrument devised by Mikulicz for exploring the interior of the stomach by electrical illumination would prove a valuable aid in diagnosis. The gastroscope in its present construction, however, has proved of little value.[97] It is, moreover, difficult to manipulate, and is not free from danger to the patient. We may be permitted, however, to hope for improvement in this direction.

[Footnote 97: Mikulicz has observed with the gastroscope in a case of pyloric cancer immobility of the pylorus and absence of rugæ in the mucous membrane of the pyloric region (_Wiener med. Wochenschr._, 1883, No. 24). It does not seem probable that there can be anything peculiar to cancer in these appearances.]

In cases in which there is reasonable suspicion of the existence of gastric cancer, and in which there is proper ground to contemplate resection of the tumor, it is justifiable to make an exploratory incision into the abdomen. It can then be decided whether or not cancer exists, and whether the case is suitable for operation. When this incision is made with all of the precautions known to modern surgery, it is attended with little or no danger,[98] and it should not be made except by surgeons who are practically familiar with these precautions.

[Footnote 98: Of 20 exploratory incisions for tumor of the stomach performed by Billroth, not one had ended fatally (_Deutsche med. Wochenschrift_, 1882, ii.).]

PROGNOSIS.--There is no proof that cancer of the stomach has ever ended in recovery. It may be admitted that partial cicatrization of gastric cancer may occur. We have, however, no sufficient reason to believe that cancer of the stomach has ever been completely destroyed by any process of nature or by any medicinal treatment.

A successful resection of a cancer of the pylorus by Billroth in January, 1881, made a great sensation in the medical world. Since that time the operation has been performed successfully ten times, and with fatal issue twenty-seven times. A radical cure has not, however, been effected, although life has been prolonged for a year and a half after the operation.[99] The possibility of permanent cure of gastric cancer by extirpation must be admitted. Enthusiasm over this possibility, however, is seriously lessened by the fact that a radical cure is not to be expected unless the operation is undertaken when the tumor is of small size, has produced no distant metastases, is free from many adhesions, and the patient is not greatly prostrated. In view of the difficulty of diagnosis in the early stages it is not likely that these favorable conditions can be fulfilled except in the rarest instances. Metastases may already exist when the tumor is small and before it has given rise to any symptoms.[100] Pylorectomy, moreover, will probably be successful in the hands of only comparatively few surgeons. It is therefore but a feeble glimmer of hope {576} which is now admitted to the hitherto relentlessly fatal forecast of this disease.

[Footnote 99: Several of the patients are still living (1884), but, so far as I can learn, no patient has survived the operation more than a year and a half.]

[Footnote 100: Birch-Hirschfeld relates a case in which a non-ulcerated cancerous tumor not larger than a silver half-dollar was found in the pyloric region of the stomach of a woman who died from injury. The tumor had given rise to no symptoms. Nevertheless, numerous metastases existed in the lymphatic glands of the omentum and of the lesser curvature (_Jahresb. d. gesellschaft f. Natur u. Heilk. im Dresden_ [1882-83], 1883, p. 37).]

TREATMENT.--Even up to the present time various drugs have been vaunted as effecting a radical cure of cancer of the stomach. Some of these, such as mercury, are positively harmful; others, such as conium, belladonna, and condurango, are often palliative; but not one has been proven to be curative. Since its recommendation by Friedreich in 1874, condurango has enjoyed the greatest vogue. The few observations in which, under the use of this agent, tumors, real or apparent, of the stomach have lessened in size or disappeared, admit of other interpretations than as cures of gastric cancer. There is, however, considerable testimony as to the virtues of condurango as a stomachic. In some cases it relieves the pain, vomiting, and indigestion of gastric cancer, but in many cases it is employed without benefit. The drug which passes by the name of condurango in the market is a very variable preparation. According to Friedreich's directions, decoction of condurango is prepared as follows: Macerate oz. ss of cort. condurango for twelve hours with fluidounce xij of water; then boil down to fluidounce vj and strain. The dose is a tablespoonful two or three times daily. The decoction of condurango may be combined with syr. aurantii cort.

While all specific treatment of gastric cancer is to be abandoned, much can be done for the relief and comfort of the patient. The treatment is symptomatic.

In general, the indications are similar to those in gastric ulcer. It is not necessary, however, to restrict the diet to the same extent as in gastric ulcer. The patient's tastes may be consulted to a considerable extent. Still, it will be found, as a rule, that the patient is most comfortable when his diet is confined to easily-digestible substances, such as milk, beef-juice, Leube's beef-solution, rare beefsteak, and other articles mentioned under the treatment of gastric ulcer.

The pain of gastric cancer will usually require the administration of opium in some form. There is manifestly not the same objection to the employment of narcotics in a necessarily fatal disease like cancer as in ulcer of the stomach. Opium may be given in pill form or as the tincture or deodorized tincture, or often most advantageously as hypodermic injections of morphia, to which atropia may be added.

Vomiting is sometimes controlled by regulation of the diet, particularly by iced milk. For this symptom also opium or morphia is often necessary. In addition, the customary remedies for relief of vomiting, such as bits of ice, iced champagne, soda-water, hydrocyanic acid, oxalate of cerium, creasote, may be tried. Cold or hot applications to the abdomen and mild counter-irritants, such as mustard plaster or turpentine stupes, sometimes afford relief. If the vomiting be incoercible, it may be well to administer food for a short time exclusively by the rectum, and in case of stenosing cancer of the cardia this method of administering food may be the only one possible.

Acid eructations and heartburn are often relieved by the antacids, as bicarbonate of sodium, lime-water, or calcined magnesia. Against fermentative processes in the stomach have been recommended salicylate of sodium, creasote, carbolic acid, and the alkaline hyposulphites. Charcoal tablets are as useful as, and less likely to disagree than, other antifermentatives. {577} In view of V. d. Velden's investigations, already mentioned, the administration of dilute hydrochloric acid in an hour after a meal is indicated.

Excellent results have been obtained by regularly washing out the stomach in cases of gastric cancer, particularly in pyloric cancer with dilatation of the stomach. By this procedure pain, indigestion, and vomiting are often greatly relieved, and the patient experiences a renewed sense of well-being. Unfortunately, the benefit is only temporary. The syphon process is most conveniently employed. Contraindications to the use of the stomach-tube are copious gastrorrhagia and great weakness of the patient.

When constipation is not relieved by washing out the stomach, enemata should be employed. Drastic purgatives should not be given.

For diarrhoea opium may be given, particularly in the form of small enemata of starch and laudanum.

Scanty hemorrhage in the form of coffee-grounds vomiting requires no treatment. Copious hæmatemesis is to be treated according to the principles laid down under the treatment of hemorrhage from gastric ulcer.

Discussion of the surgical treatment of gastric cancer of course does not belong to this work. The opinion entertained by the physician as to the propriety of surgical interference in gastric cancer is not, however, a matter of indifference, for cases of gastric cancer come first into the hands of the physician, and generally only by his recommendation into those of the surgeon. So long as the physician stands absolutely powerless before this disease, his general attitude as to the propriety of surgical interference should not be one of hostility. Experience only can determine the justification of surgical operation in cases of gastric cancer. As yet, it is too soon to express a positive opinion as to the value of resection of gastric cancer. Of 37 published resections of cancer of the pylorus, 27 died from the effects of the operation, and of the fatal cases 18 within the first twenty-four hours. These results are certainly not calculated to awaken much enthusiasm for the operation. Still, it would be wrong to draw definite conclusions from the existing statistics of resection of the cancerous pylorus, partly because the number of operations is as yet too small, partly because the operation has been done when it was certainly unwarrantable according to the best judges (Billroth, Czerny), and chiefly because the number of operators in proportion to the number of operations is too great. For the 37 published operations there have been 27 operators. Ovariotomy was not considered a justifiable operation until the excellent results of individual operators were obtained. It is probable that to an even greater extent resection of the pylorus will become the specialty of certain operators. Therefore, before concluding as to the value of resection of cancer of the stomach it is necessary to await the results of individual surgeons in a series of cases.[101]

[Footnote 101: Already, from this point of view, the operation appears more hopeful. Czerny has performed 6 resections of the stomach with only 2 fatal results; 4 of the operations were pylorectomies for cancer. Billroth has performed the operation 8 times with 3 fatal results (_Wiener med. Wochenschrift_, 1884, Nos. 17 and 29).]

So much, however, is now certain, that with our present means of diagnosis the number of cases suitable for extirpation is very small.[102] A {578} radical cure is to be expected only in the rarest instances, so that the value of the operation will depend chiefly upon the condition of the patient after its performance. As regards this point, the results in the successful cases have been encouraging. In several instances the terrible sufferings of the patient have given place to months of comparative health and comfort.

[Footnote 102: Billroth at the eleventh session of the Congress of German Surgeons said that he was amazed at the number of resections of the pylorus which had been performed. Out of 50 to 60 cases of gastric cancer, only 1 appeared to him suitable for operation.]

In cases of extreme cancerous stenosis of the pylorus which are not suitable for resection Wölfler proposed forming a fistulous communication between the stomach and the small intestine (gastro-enterostomy). The results of the operation have not been encouraging. Out of six cases in which this operation has been performed, only two patients lived after the operation.

For the same condition Schede proposed making a duodenal fistula (duodenostomy), but I am not aware that the operation has been performed.

The results of gastrostomy for relief of cancerous stenosis of the cardia or of the oesophagus have not been encouraging.[103]

[Footnote 103: Of 76 cases of gastrostomy for the relief of cancer of the oesophagus or of the cardia, only 14 lived over thirty days (Leisrink and Alsberg, _Arch. f. klin. Chir._, Bd. 28, p. 760, 1882).]

Non-Cancerous Tumors of the Stomach.

Little clinical interest attaches to non-cancerous tumors of the stomach. They are comparatively rare and usually unattended by symptoms. Even should a tumor be discovered, there are no means of determining the nature of the tumor; and if symptoms are produced by the tumor, the case will probably be diagnosticated as one of cancer. It is necessary, therefore, in the present work to do little more than enumerate the different forms of non-cancerous tumor of the stomach.

The most common of benign gastric tumors are polypi projecting into the interior of the stomach. These are usually so-called mucous or adenomatous polypi, being composed of hypertrophied or hyperplastic elements of the mucous membrane with or without new growth of submucous tissue. They may be present in large number (one hundred and fifty to two hundred in a case of Leudet's). Their development is usually attributed to a chronic catarrhal gastritis, so that a gastritis polypora has been distinguished. These polyps are important only when they obstruct one of the orifices of the stomach, in which case they may cause even fatal stenosis. This occurrence is very rare.

Benign adenomata appear less frequently as growths in the submucous coat of the stomach (Winiwarter).

Myomata and myosarcomata, projecting sometimes as polyps either into the gastric or the peritoneal cavity, may attain a very large size, as in a case reported by Brodowski in which a cystic myosarcoma of the stomach weighed twelve pounds.[104]

[Footnote 104: _Virchow's Archiv_, Bd. 67.]

Sarcoma, either as a primary or a secondary tumor of the stomach, is rare. Two cases of secondary lympho-sarcoma of the stomach (primary of the retro-peritoneal glands) without gastric symptoms have come under my observation. In a similar case reported by Coupland the symptoms resembled those of gastric cancer.[105]

[Footnote 105: _Trans. London Path. Soc._, vol. xxviii. p. 126.]

{579} In connection with gastric ulcer mention has already been made of the occurrence of miliary aneurisms in the stomach, which may be the cause of fatal hæmatemesis.

Sometimes the mucous membrane is studded with little cysts, as in a case reported by Harris.[106]

[Footnote 106: _Am. Journ. Med. Sci._, April, 1869.]

Fibromata and lipomata are very rare.

Foreign bodies in the stomach, particularly balls of hair, have been sometimes mistaken for tumors, particularly cancer, of this organ. Schönborn removed successfully a ball of hair from the stomach by gastrotomy.[107] Before the operation the tumor was considered to be a movable kidney.

[Footnote 107: _Arch. f. kl. Chirurg._, Bd. xxix. p. 609.]

{580}

HEMORRHAGE FROM THE STOMACH.

BY W. H. WELCH, M.D.

Hemorrhage from the stomach is a symptom, and not a disease. It is a result of a great variety of morbid conditions in the description of which it receives more or less consideration. Already the symptomatology and treatment of hemorrhage from the stomach have been considered in connection with its two most important causes--namely, gastric ulcer and gastric cancer. It remains to give a summary of the etiology and diagnosis of gastric hemorrhage.

Hemorrhage from the stomach is also called gastrorrhagia. The term hæmatemesis is not synonymous with gastric hemorrhage, for blood may be vomited which has simply been swallowed or has passed from the intestine into the stomach.

ETIOLOGY.--The causes of gastric hemorrhage are as follows:

1. Ulcer of the Stomach.--Simple gastric ulcer is the most frequent cause of abundant hemorrhage from the stomach. Tuberculous gastric ulcers, typhoid gastric ulcers, and the ulcers of phlegmonous gastritis are extremely rare causes of hemorrhage. Hemorrhagic erosion of the stomach, which by many writers is assigned an important place in the etiology of gastric hemorrhage, is not an independent affection, and in my opinion is without any clinical significance.

2. Cancer of the Stomach.--(Non-cancerous tumors of the stomach hardly deserve mention in this connection, so infrequently are they the cause of gastric hemorrhage.)

3. Traumatism (mechanical, chemical, thermic).--_a_. Acting from without the stomach: severe injury to the abdomen, as by a blow or a fall; penetrating wounds of the stomach.

_b_. Acting from within the stomach: foreign bodies, particularly sharp-pointed ones; corrosive poisons, as acids and alkalies; other toxic inflammatory irritants; and very hot substances. Here should also be mentioned injury from an inflexible stomach-tube and aspiration of mucous membrane with the stomach-pump.

4. Diseases of the Gastric Blood-vessels.--_a_. Aneurism of the arteries of the stomach. Miliary aneurisms have been found by Galliard and others as a cause of profuse and even fatal hemorrhage from the stomach. Especially in obscure cases should careful search be made for miliary aneurisms.

_b_. Varices of the veins are a not unimportant cause of gastric hemorrhage. They are most frequently associated with chronic passive {581} congestion of the stomach, but they may be found without any apparent disturbance of the circulation.

_c_. Degenerations of the vessels, particularly fatty and atheromatous degeneration of the arteries. Probably gastric hemorrhage in phosphorus-poisoning is to be attributed to fatty degeneration of the arteries. Amyloid degeneration of the blood-vessels is a doubtful cause of hemorrhage.

5. Active Congestion of the Stomach.--Here is usually placed gastric hemorrhage as a result of severe inflammation of the stomach (as acute catarrhal gastritis), although in these cases the inflammatory alteration of the vascular walls is an equally important factor.

With more probability the so-called vicarious hemorrhages from the stomach are to be assigned to active congestion. Sceptical as one is inclined to be as regards vicarious hemorrhages of the menses, the occurrence of such hemorrhages, although rare, must be admitted. Doubtful, however, are alleged cases of gastric hemorrhage taking the place of suppressed hemorrhoidal bleeding or of epistaxis.

6. Passive Congestion of the Stomach.--This embraces an important group of causes of gastric hemorrhage. This hemorrhage is the result of venous congestion caused by some obstruction to the portal circulation. The obstruction may be--

_a_. In the portal vein itself or its branches within the liver, as in pylethrombosis, cirrhosis of the liver, tumors, such as cancer or echinococcus cysts, compressing the portal vein, occlusion of capillaries in the liver by pigment-deposits in melanæmia, and dilatation of the bile-ducts in the liver from obstruction to the flow of bile. Next to ulcer and to cancer of the stomach, cirrhosis of the liver is the most frequent and important cause of gastrorrhagia.

_b_. In the pulmonary blood-vessels, as in pulmonary emphysema, chronic pleurisy, and fibroid induration of the lungs.

_c_. In the heart in consequence of uncompensated valvular and other diseases of the heart.

For evident reasons, obstruction of the pulmonary or of the cardiac circulation is much less likely to cause gastric hemorrhage than is obstruction in the portal vein or the liver.

Possibly, gastric hemorrhage which is caused by violent acts of vomiting may be caused by venous congestion of the mucous membrane of the stomach. In support of this view, Rindfleisch advances the idea that the veins in the muscular layers of the stomach, in consequence of the thinness of their coats, are much more likely than the arteries to suffer from the compression of the muscle during its contraction.

The occasional occurrence of gastric hemorrhage during pregnancy has also been attributed to passive congestion of the stomach.

7. Acute Infectious Diseases--namely, yellow fever, acute yellow atrophy of the liver, relapsing fever; less frequently cholera, typhoid fever, typhus fever, diphtheria, erysipelas, and the exanthematous fevers, small-pox, measles, and scarlet fever.

The cause of gastric hemorrhage in these diseases is not understood. The usual explanation attributes the hemorrhage to dissolution of the blood-corpuscles and secondary alteration of the walls of the blood-vessels. Plugging of the vessels with micro-organisms has been found {582} in only a few instances. The gastrorrhagia of acute yellow atrophy of the liver has been attributed to dissolution of the blood, not only by some infectious agent, but also by constituents of the bile, and also to obstruction of the portal circulation by destruction and occlusion of capillaries in the liver.

8. Other Constitutional Affections.--_a_. Hemorrhagic diatheses--namely, scorbutus, purpura, and hæmatophilia. Strictly speaking, a hemorrhagic diathesis exists in other affections of this class.

_b_. Malaria. Here we may distinguish, first, periodical malarial hemorrhages from the stomach which are cured by quinia; second, pernicious gastric malarial fever, of very grave prognosis; and third, hemorrhages in malarial cachexia due to extreme anæmia. Cases which have been described as malaria with scorbutic complications belong mostly to the last variety. Mention has already been made of gastric hemorrhages attributed to malarial pigmentation of the liver.

_c_. Profound Anæmias. The most important affections in this category are progressive pernicious anæmia, leucocythæmia, and pseudo-leucocythæmia, including the so-called splenic anæmia.

_d_. Cholæmia. The hemorrhage is attributed to dissolution of the blood-corpuscles by the action of the biliary salts.

Gastric hemorrhage is a rare event in Bright's disease, occurring more especially with small kidneys. In one such case I found that the fatal hemorrhage was due to the bursting of a miliary aneurism of a small artery in the submucous coat. Probably in all similar cases the hemorrhage is referable to disease of the vascular walls.

9. Neuropathic Conditions.--Although ecchymoses in the mucous membrane of the stomach can be experimentally produced by injury of various parts of the brain and spinal cord, there is no proof that gastric hemorrhage which is of any clinical importance is referable to structural diseases of the nervous system. The occasional occurrence of gastric hemorrhage in progressive paralysis of the insane, in tuberculous meningitis, in epilepsy, is to be attributed to other causes.

In lack of a better explanation, however, the gastric hemorrhages which have been occasionally observed in hysterical women may be classified here. These constitute not the least important class of gastric hemorrhages. The hemorrhages from the stomach in chlorosis belong partly here and partly to anæmia.

10. Melæna Neonatorum.--Although in some cases ulcers have been found in the stomach or duodenum, and in others a general hemorrhagic diathesis exists, it must be said that the etiology of this grave disease is still very obscure.

11. Bursting of Aneurisms or of Abscesses from without into the Stomach.