Table 3.

Suggested classification of gastric epithelial polyps and alternative terms used in the literature

Polyps arising from the foveolar compartment
	Hyperplastic polyp
	Adenomas arising from foveolar compartment with or without intestinal metaplasia
		• Foveolar adenoma
		• Intestinal type adenoma
Polyps arising from glandular compartment
	Fundic gland polyp
	Gastric glandular adenoma (with GNAS mutation)
		• chief cell predominant (also known as OGA, GA-CCD or GAFGs)
		• parietal cell predominant
		• mucous neck cell predominant (PGA)
		• mixed type

OGA: oxyntic gland adenoma; GA-CCD: gastric adenocarcinoma with chief cell differentiation; GAFG: gastric adenocarcinoma fundic gland type; PGA: pyloric gland adenoma