374 DISEASES OF THE G ASTRO-INTESTINAL TRACT. 



ating endarteritis a state of affairs which protects largely 

 against hemorrhage. 



The dangers in gastric ulcer, which are always imminent, 

 are perforation and hemorrhage. 



FIG. 167. 



Hour-glass contraction of stomach (Warren Museum, Harvard Medical School). 



Perforation (Fig. 165) and the escape of the stomach- 

 contents into the peritoneal cavity cause death immediately 

 from shock ; or in a few days from a general peritonitis. This 

 accident occurs most frequently when the ulcer is situated on 



