Interest in the problem of gastric ulcer is constantly stimulated by the following questions, which arise frequently in the diagnosis and treatment of the gastric lesion:
Is the visualized lesion actually organic?
Is it benign or malignant?
Is it healable by medical treatment, or would surgical treatment give more adequate insurance against its recurrence, or against malignant degeneration?
Is it as necessary to guard against recurrence of the gastric ulcer as if it were distal to the pyloric sphincter?
Some of these phases of the gastric ulcer problem have been discussed so frequently that to review them seems superfluous; but even the most frequently discussed points are sometimes profitably reviewed by the light of additional material and in conjunction with other phases of the problem. In this study 119 cases have been used in which the diagnosis of gastric ulcer has been made on a reasonable