Gyrus-like endoscopic changes in autoimmune gastritis with past Helicobacter pylori infection: Two case reports and review of literature

Figure 1 Endoscopic images from the patient in Case 1. A: Atrophy of the antrum with visible xanthomas and circular wrinkle-like patterns; B: Atrophy along the lesser curvature of the corpus, with a clearly visible atrophic border (green line). Gyrus-like changes on the anterior wall of the corpus in the form of mucosal swelling (blue arrow) and deep fissures (black arrow); C: Adherent white mucus in the fundus; D: Severe atrophy in the upper greater curvature of the corpus, with visible submucosal vessels (purple arrow) after adequate insufflation. Scattered grid-like atrophy (purple box) can be seen on the posterior wall; E: Gyrus-like changes in the mid-to-lower greater curvature of the corpus; F: Indigo carmine staining clearly highlighted the atrophic border.