Abstract
It is widely known that gastric lesions, for example, erosive gastritis or gastric ulcer, frequently co-exist with duodenal ulcer. The mucosal border of the stomach and characteristics of the gastric lesions co-existing with duodenal ulcer were discussed. In 91 patients with active duodenal ulcer, 90 (99%) showed the mucosal border of the closed type. On the other hand, 88% of patients with duodenal ulcer scar showed the closed type, and 12%, the open type. In duodenal ulcer patients, about 50% had gastric ulcer, erosive gastritis and/ or comb-like redness. A co-existance rate of gastric lesion was high in patients over 40, compared with those under 40. In the co-existing gastric ulcers, 80% were observed from the angle to the pyloric region. Thirty eight percent of patients with duodenal ulcer had erosive gastritis, multiple red patches or comb-like redness, especially in patients over 40. The recurrence rate of duodenal ulcer without gastric lesion was higher than the ulcer with one.
