Table 2.

Histology scoring criteria.

Score	Severity of Inflammation	Extent of Inflammation	Amount of Mucus	Degree of Proliferation
0	None	None	Normal	None
1	Mild lymphoid infiltration	Mucosal	Slight decrease	Mild increase in cell numbers and crypt length
2	Lymphoid infiltration/focal crypt degeneration	Submucosal	Severe depletion	Moderate increase. Focally marked increase
3	Multifocal crypt degeneration and/or erosions	Transmural	Severe depletion	Marked increase—entire section
4	NA	NA	Total absence	NA