Gastric Anisakiasis - Gastroscopy revealed multiple anisakis larvae penetrating into the mucosa in the esophagogastric junction, fundus, upper body, middle body, and antrum of the stomach. #Clinical #GI #InfectiousDisease #EGD #Gastric #Anisakiasis #Anisakis #AnisakisSimplex #NEJM