Localized primary gastric amyloidosis: Three case reports

Figure 2 Endoscopic and histological data of patient 2. A: Conventional endoscopy showed a red and white area in the atrophic gastric antrum with active gastritis. B: Narrow-band imaging (NBI) showed a defined light brownish area. C: Magnifying endoscopy with NBI revealed expanded normal glands with changed polarity and tree-like vessels. D: Hematoxylin-eosin staining showed abundant cord-like red substances in the mucosal layers. E: These tissues were positive for Congo red staining. Orange arrows indicate amyloid depositions.