Upon transverse section the different coats of the stomach can be distinguished. The mucous membrane is least affected, being sometimes thickened, sometimes normal or atrophied. The muscularis mucosæ is hypertrophied, and is evident to the naked eye as a grayish band. The submucous coat is of all the layers the most thickened, being sometimes ten to fifteen times thicker than normal. It appears as a dense white mass of fibrous tissue. The main muscular coat is also, as a rule, greatly hypertrophied; the grayish, translucent muscular tissue is pervaded with streaks of white fibrous tissue prolonged from the submucous and subserous coats. This last coat resembles in appearance the submucous coat, which, however, it does not equal in thickness, although it is, proportionately to its normal thickness, much hypertrophied. The free peritoneal surface usually appears opaque and dense.
To the naked eye it is apparent that the new growth of fibrous tissue is most extensive in the submucous coat, which it is probably correct to regard as the starting-point of the disease. The hypertrophy of the muscular layers is also in most cases an important element in the increased thickness of the gastric walls.
Microscopical examination9 shows sometimes a nearly normal mucous membrane. The tubules, however, are usually more or less atrophied. In the case reported by Nothnägel tubules could be found only in the pyloric region of the stomach. The essential lesion is the new growth of fibrillated connective tissue pervading all of the coats of the stomach. In an interesting case reported by Marcy and Griffith,10 which was believed to be caused by an extensive cicatrized ulcer, a new formation of smooth muscular tissue was found not only in the main muscular tunic and the muscularis mucosæ, but also throughout the submucosa. This peculiarity was probably referable to the cicatrization of the ulcer.
9 Microscopical examination is always necessary for a positive diagnosis of cirrhosis of the stomach. In a case which I examined post-mortem of double ovarian cancer, with multiple secondary deposits in the peritoneum and with chronic peritonitis, the stomach presented the typical gross appearances of cirrhosis, but here and there were to be found nests of cancer-cells in the prevailing new growth of fibrous tissue in the walls of the stomach.
10 Am. Journ. of the Med. Sci., July, 1884, p. 182.
Not infrequently adhesions exist between the stomach and surrounding organs. Exceptionally, a diffuse growth of fibrous tissue may invade the greater part of the peritoneum, particularly the visceral layer, and cause a thickening similar to that existing in the stomach. In such cases ascites is usually a marked symptom.
PROGNOSIS.—The prognosis of cirrhosis of the stomach is grave. The disease runs a chronic course, and usually terminates in death by asthenia. There is no reason to believe that the stomach can ever be restored to its normal condition. Still, cases have been reported in which it has been supposed that cirrhosis of the stomach has terminated in recovery.11 The diagnosis, however, in such cases must remain doubtful.
11 Lesser, Cirrhosis Ventriculi, Inaug. Diss., Berlin, 1876; Smith, "Cirrhosis of the Stomach," Edinb. Med. Journ., 1872, p. 521.
TREATMENT.—The treatment is symptomatic, and is to be guided by the general principles developed in previous articles concerning the regulation of the diet and the administration of remedies.