Normal |
0 |
normal |
0 |
Scattered |
1 |
minimal inflammation and colonic crypt hyperplasia |
1 |
Increased |
2 |
mild colonic crypt hyperplasia with or without focal
invasion of the epithelium |
2 |
Confluence |
3 |
obvious colonic crypt hyperplasia, invasion of the
epithelium, and goblet cell depletion |
3 |
Transmural extension |
4 |
extensive mucosal damage and extension to
deeper structures of the bowel wall |
4 |