Table 3.
Classification of 45 pathologic assessment parameters (PAPs)
| Mouse organs | All | Direct classification | After combination | |||
|---|---|---|---|---|---|---|
| Category‐1 | Category‐2 | Category‐1 | Category‐2 | Reduced # due to the combination | ||
| A. Lung | 8 | 3 | 5 | 3 | 5 | — |
| B. Lymph node, bronchi | 7 | 3 | 4 | 3 | 4 | — |
| C1. Nasal turbinate level I | 4 | 1 | 3 | 1 | 3 | — |
| C2. Nasal turbinate level II | 12 | 3 | 9 | 4* | 6** | 2 |
| C3. Nasal turbinate level III | 8 | 1 | 7 | 2* | 4** | 2 |
| C4. Nasal turbinate level IV | 5 | 2 | 3 | 2 | 3 | — |
| D. Trachea | 1 | 1 | 0 | 1 | 0 | |
| All organs | 45 | 14 | 31 | 16 | 25 | 4 |
| 45 | 45 | |||||
*
Combined into Category‐1 pathologic parameters.
**
Three very similar Category‐2 PAPs: (a) Dilatation; Bowman's Gland; Duct, (b) Dilatation; Bowman's Gland; Lateral Wall/Turbinate, and (c) Dilatation; Bowman's Gland; Septum; are combined as one Category‐1 PAP.