TUMORS OF THE STOMACH. 



375 



the anterior wall of the stomach. It may also take place into 

 the liver, spleen, or pancreas, with resulting abscess-forma- 

 tions; or into the pleura, pericardium, or lungs. 



Hemorrhage, when a large vessel is eroded, may prove 

 rapidly fatal (Fig. 166). 



Cicatrization and consequent contractions of portions of 

 the stomach-wall may cause considerable deformity hour- 

 glass contraction, or pyloric or cardiac stenosis (Fig. 167). 



TUMORS. 



Carcinoma is the most common and most important tumor 

 of the stomach. It is almost invariably a primary affection. 



FIG. 168. 



' 



Cancer a large fungous growth at the pylorus, with dilatation and hypertrophy of 

 the walls (Warren Museum). 



Secondary cancer is rare, though it may result by extension 

 from adjacent organs ; and in a few instances there seems to 



