Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
| Feature | Score | Description |
| Loss of epithelium | 0 | None |
| 1 | 0%∼25% loss of epithelium | |
| 2 | 26%∼50% loss of epithelium | |
| 3 | >50% loss of epithelium | |
| Length of crypts | 0 | None to length of crypts 85% normal thickness |
| 1 | Length of crypts 85%∼70% normal thickness | |
| 2 | Length of crypts 70%∼50% normal thickness | |
| 3 | Length of crypts <50% normal thickness | |
| Infiltration of leukocytes | 0 | None |
| 1 | Mild | |
| 2 | Moderate | |
| 3 | Severe |
