Gastric cancer development after the successful eradication of Helicobacter pylori

Figure 1 Representative photos of Congo-red chromoendoscopy in a 66-year-old female patient with gastric cancer that emerged after successful eradication of Helicobacter pylori infection. A: A lesion of well-differentiated adenocarcinoma located on the lesser curvature in the lower part of the stomach [FQ260Z (Olympus, Tokyo)]; B: Congo-red imaging showed GC in a non-acid secreting area (Red); C and D: Post-eradicated gastric background mucosa (Red: Non-acid secreting area; Black: Acid secreting area). GC: Gastric cancer.