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Figure legends: Figure 1) A: Endoscopy showing a neoformation
with a short peduncle in the third duodenal portion. B: Saline solution
with a drop of methylene blue is injected into the peduncle of the
lesion. C: Neoformation is resected en bloc using a snare cautery. D:
Endoscopy after one year from resection showing no residual tissue
Figure 2) Histopathological examination showing the mucosa of the small
bowel partially replaced by gastric mucosa, with evident foci of
foveolar epithelium and oxyntic glands, as expected in case of gastric
heterotopia (Haematoxylin and eosin staining, a:100x; b: 200x and c:
400x)