Table 1.

Histological scoring table: parameters used to score inflammation on a scale from 0 to 3.

Score	0	1	2	3
Infiltration of inflammatory cells	Rare inflammatory cells	Increased number of inflammatory cells	Confluence of inflammatory cells	Transmural extension of inflammatory cell infiltrate
Severity of epithelial damage	Absence of mucosal damage	Lymphoepithelial lesions	Mucosal ulceration	Extensive mucosal damage and extension through deeper structure of intestine wall
Cellular morphology	Normal lining, no crypt distortion	Mild crypt distortion	Moderate crypt distortion	Severe epithelial damage