Table 2

Gastric polyp characteristics and malignant potential

Polyp type	Usual number and size	Usual site	Malignant potential of polyp	Malignant potential of background mucosa	Management
Sporadic fundic gland polyp	Multiple 1–5 mm	Upper and lower body	Very low	Very low	Biopsy to confirm nature of polyp
Sporadic fundic gland polyp	Multiple 1–5 mm	Upper and lower body	Very low	Very low	No follow-up needed
Familial adenomatous polyposis-associated fundic gland polyp	Multiple ‘carpet’ <1 cm	Upper and lower body	Low	Low	Biopsy to confirm nature of polyp
	Multiple ‘carpet’ <1 cm	Upper and lower body	Low	Low	Repeat OGD every 2 years
Hyperplastic	Single 1–2 cm	Antrum	Low but significant	Low	Remove polyp if dysplastic
					Eradicate H pylori
					Repeat OGD 1 year
	Multiple <1 cm	Lower body	Low but significant	Low	Eradicate H pylori
	Multiple <1 cm	Lower body	Low but significant	Low	Repeat OGD 1 year
Adenoma	Single 1–2 cm	Antrum	High	Significant	Remove polyp
					Sample rest of gastric mucosa
					Repeat OGD at 1 year
Inflammatory fibroid polyp	Single 1–5 cm	Antrum	Very low	Very low	Biopsy to confirm nature of polyp
					Remove if causing obstruction
					No follow-up