Grade | Description |
---|---|
0 | No lesions in the distal ileum. |
1 | ≤ 5 aphthous lesions. |
2 | > 5 aphthous lesions with normal mucosa between lesions, or larger lesions confined to the ileocolonic anastomosis. |
3 | Diffuse aphthous ileitis with diffusely inflamed mucosa. |
4 | Diffuse inflammation with large ulcers, nodules, and/or strictures. |