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.
Histological scoring criteria.
| Score 0 | Score 1 | Score 2 | |
|---|---|---|---|
| Acute inflammatory cell infiltration | No | Mild increase | Severe increase |
| Chronic inflammatory cell infiltration | No | Mild increase | Severe increase |
| Submucosal oedema | No | Patchy | Confluent |
| Ulcer formation | No | Yes |
