Table 4.

Detailed scoring system for assessing the histological changes.

Score	Tissue damage (T)	Inflammatory cell infiltration (I)
0	None	None
1	Isolated focal damage	Increased
2	Mucosal erosions and ulcerations	Infiltration of the submucosa
3	Extensive damage deep into the wall	Transmural infiltrations

Histological score = T+ I.