Tissue | Histologic changes | Score |
---|---|---|
Lymphatic nodule | No change | 0 |
Leukocyte infiltration into inflamed lung tissue (Inflammatory granuloma forming) | + 1 | |
Mild inflammatory granuloma without alveolar alterations | + 2 | |
Severe inflammatory granuloma with the destruction of alveoli (lung abscess) | + 3 | |
Severe inflammatory granuloma with the destruction of alveoli and peribronchial inflammation with luminal slough | + 4 |