Table 1.

Staging system of gastric ulcer

Stage	Findings
A1 (active stage 1)	Ulcer with mucus coating and marginal elevation because of oedema
A2 (active stage 2)	Mucus-coated ulcer with discrete margin and less oedema than active stage 1
H1 (healing stage 1)	Healing ulcer < 50% covered by regenerating epithelium with or without covering folds
H2 (healing stage 2)	Ulcer with a mucosal break, but almost covered by regenerating epithelium
S1 (scar stage 1)	Red scar with rough epithelialization and mucosal break(s)
S2 (scar stage 2)	White scar with complete re-epithelialization

English version of the ulcer staging system of Sakita and Fukutomi [11].