Table 1.

Histological scoring criteria.

Inflammation	Depth of lesions	Destruction of crypt	Width of lesions (%)	Score
None	None	None	0	0
Mild	Submucosa	1/3 basal crypt	1 ∼ 25	1
Moderate	Muscularis	2/3 basal crypt	26 ∼ 50	2
Severe	Serosa	Intact epithelium only	51 ∼ 75	3
–	–	Total crypt and epithelium	76 ∼ 100	4