Fig. 2

Images of gastroscopy and histological examination. Images of gastroscopy showing multiple ulcers in the gastric antrum (a) and mucosal edema and multiple ulcers in the duodenal bulb (b). Hematoxylin and eosin staining showed chronic active mucosal inflammation, granulomatous inflammation, and epithelioid granulomas in the local lamina propria (c, d) (c ×200, d ×100)