Table 4.

Histological damage scoring system for quantitative evaluation of the colon injury.

Category	Score
Inflammation
No infiltrate	0
Occasional, limited to submucosa	1
Significant Infiltrate in submucosa, limited to focal areas	2
Infiltrate in both submucosa and lamina propria, limited to focal areas	3
Abundant infiltrate in submucosa and lamina propria, covering large areas of mucosa	4
Transmural inflammation (mucosa to muscularis)	5
Crypt damage
None	0
Some crypt damage, spaces between crypts	1
Loss of goblet cells, large spaces between crypts	2
Large areas without crypts, surrounded by normal crypts	3
No crypts	4
Ulceration
None	0
Small, focal ulcers	1
Small, frequent ulcers	2
Large areas lacking surface epithelium	3
Edema
Absent	0
Presen	1
Histological damage score	Sum (max = 13)