In the early stages cancer of the stomach produces few or only slight symptoms. Many, perhaps most victims of gastric cancer do not seek medical advice before the cancer has advanced beyond surgical cure. For various reasons delay in diagnosis often occurs even if the patient is under medical care; in general the prognosis remains distressingly dismal. With the means at hand the only way to change the outlook is removal of the cancer much earlier than is now usual. This means of course that the cancer must be diagnosed in the early stages, even before it causes any symptoms.
The best if not the only practical method of excluding asymptomatic gastric cancer at present is fluoroscopy of the stomach, followed if indicated by x-ray, gastroscopic and other studies, as introduced by St. John, Swenson and Harvey.1 By fluoroscopy they found 2 cases of early gastric carcinoma and 1