Figure 2

Schematic diagram of antral predominant gastritis and corpus predominant gastritis. The role of H. pylori colonization on different types of gastritis. (A) H. pylori-induced antral predominant gastritis, this pathogen might colonize in the antrum and proximal duodenum. (B) H pylori-induced corpus predominant gastritis, the inflammatory area might involve almost the whole stomach. Abbreviation: GU gastric ulcer, DU duodenal ulcer, GERD gastroesophageal reflux disease, EU esophageal ulcer.