TABLE 3.
Quantification of cellular inflammation in histological specimens
| Score | Description |
|---|---|
| Severitya | |
| 0 | No inflammatory infiltrates |
| 1 | Inflammatory cells present without discrete foci |
| 2 | Larger foci of 10 to 100 inflammatory cells |
| 3 | Larger foci of >100 inflammatory cells |
| Extent | |
| 1 | Mild (<25% of section involved) |
| 2 | Moderate (∼25–75% of section involved) |
| 3 | Severe (>75% of section involved) |
a
A score from 0 to 3 was given for the size/intensity of cellular infiltrates. The score was then multiplied by a number reflecting the extent of involvement in the specimen to reach a single final severity score, resulting in a total score that could range from 0 to 9.