| Grade |
Description |
| 1 |
Minimal (cellular infiltration). |
| 2 |
Mild (inflammatory cellular infiltration, dilated vessels). |
| 3 |
Moderate (lymphocytic cell infiltration, congested blood vessels, cherry red spots) |
| 4 |
Marked (cellular infiltration, congested tortuous blood vessels in mucosa and sub-mucosa with edema, erosion). |
|
