Clinical applicability of gastroscopy with narrow-band imaging for the diagnosis of Helicobacter pylori gastritis, precancerous gastric lesion, and neoplasia

Figure 5 White-light endoscopy and magnifying narrow-band imaging images of high grade dysplasia. A: An elevated lesion (40 mm × 30 mm) at the gastric antrum; B: Brownish area showing an irregular mucosal surface and a microvascular pattern (left side), indicating a high grade dysplasia. The demarcation line is evident between the dysplasia and background mucosa with intestinal metaplasia (also see white box in A); C: A slightly elevated lesion (35 mm × 20 mm) at the lesser curvature of the gastric corpus; D: The microvessels within irregular, nodular lesion show tortuosity and variation in shape. This magnifying narrow-band imaging endoscopic finding indicates high grade dysplasia (also see white box in C).