Gastric atrophy, diagnosing and staging

Figure 1 Duodenal ulcer and gastric ulcer represent two ends of one disease “H pylori infection”. Unlike gastric ulcer patients, duodenal ulcer patients have a long lag period before developing gastric atrophy. Disease progression is dependent on H pylori infection (cured/uncured) and other environmental factors such that in some countries DU would be considered protective against the development of gastric carcinoma.