Narrow-band imaging with magnifying endoscopy for the evaluation of gastrointestinal lesions

Figure 3 Narrow band imaging with magnification endoscopy images of gastric lesions. A: Helicobacter pylori gastritis: enlargement of pits, variable vascular density (alternation of lighter and darker areas); B: Extensive areas of intestinal metaplasia (tubulovillous mucosal pattern) and remnant normal gastric body mucosa (small regular and circular pits); C: Areas of intestinal metaplasia: blue whitish slightly raised areas (the light blue crest sign) with regular, tubulovillous mucosal pattern; D: Dysplasia: area with architectural loss of mucosal pattern and irregular vascular pattern.