This reduced size model shows different stages of gastritis starting from light ulcer and ending in perforation. The section model shows the lower part of esophagus, the stomach and the start of duodenum. It shows the following pathologies:
- Hypertrophic gastritis
- Hemorrhagic gastritis
- Erosive gastritis
- Erythematous gastritis
- Healing stage with scar formation
- Bleeding ulcer
- Perforated ulcer