Figure 1. A: A sharp demarcation is seen between colonic mucosa (left) and gastric mucosa (×40); B: A transition from colonic mucosal epithelium to foveolar epithelium is noticed in the left (×100); C and D: Gastric mucosa shows foveolar epithelium with mixture of chief cells and parietal cells in the lamina propria (×100 in C and ×400 in D).