Color Intensity | Score |
No cells are stained brown | 0 |
Weak staining intensity: light brown | 1 |
Intermediate staining intensity: brown | 2 |
Strong staining intensity: dark brown | 3 |
Cell Distribution | Score |
<20% | 1 |
20% - 50% 50% - 80% | 2 3 |
≥80% | 4 |