Table 2.

Evaluation of Pathological Score

Score	Epithelial Cells	Inflammatory Cell Infiltration
0	Normal form	No infiltration
1	Goblet cell loss	Infiltration in basal layer of crypt
2	Large area loss of goblet cells	Infiltration reaches the mucosal muscle layer
3	Crypt cells loss	Infiltration deep into the mucosal muscle layer, accompanied by mucosal thickening and edema
4	Large area loss of crypt cells	Infiltration to the submucosa

Note: The pathological score = combined score of epithelial score and inflammatory cell infiltration.