Table 2.

Scoring system for histological evaluation.

Score	Epithelial Integrity	Lamina Propria Inflammatory Cell Infiltration
0	None	Infrequent
1	Focal epithelial damage	Increased, some neutrophils
2	Mucosal erosions and ulceration	Submucosal presence of inflammatory cell clusters
3	Extensive epithelial damage	Transmural cell infiltration