Table 1.
Score thresholds for mitotic counts
| Field | Field | Mitotic count (score) | ||
|---|---|---|---|---|
| Diameter (mm) | Area (mm2) | 1 | 2 | 3 |
| 0.40 | 0.126 | ≤ 4 | 5–9 | ≥ 10 |
| 0.41 | 0.123 | ≤ 4 | 5–9 | ≥ 10 |
| 0.42 | 0.138 | ≤ 5 | 6–10 | ≥ 11 |
| 0.43 | 0.145 | ≤ 5 | 6–10 | ≥ 11 |
| 0.44 | 0.152 | ≤ 5 | 6–11 | ≥ 12 |
| 0.45 | 0.159 | ≤ 5 | 6–11 | ≥ 12 |
| 0.46 | 0.166 | ≤ 6 | 7–12 | ≥ 13 |
| 0.47 | 0.173 | ≤ 6 | 7–12 | ≥ 13 |
| 0.48 | 0.181 | ≤ 6 | 7–13 | ≥ 14 |
| 0.49 | 0.188 | ≤ 6 | 7–13 | ≥ 14 |
| 0.50 | 0.196 | ≤ 7 | 8–14 | ≥ 15 |
| 0.51 | 0.204 | ≤ 7 | 8–14 | ≥ 15 |
| 0.52 | 0.212 | ≤ 7 | 8–15 | ≥ 16 |
| 0.53 | 0.221 | ≤ 8 | 9–16 | ≥ 17 |
| 0.54 | 0.229 | ≤ 8 | 9–16 | ≥ 17 |
| 0.55 | 0.237 | ≤ 8 | 9–17 | ≥ 18 |
| 0.56 | 0.246 | ≤ 8 | 9–17 | ≥ 18 |
| 0.57 | 0.255 | ≤ 9 | 10–18 | ≥ 19 |
| 0.58 | 0.264 | ≤ 9 | 10–19 | ≥ 20 |
| 0.59 | 0.273 | ≤ 9 | 10–19 | ≥ 20 |
| 0.60 | 0.283 | ≤ 10 | 11–20 | ≥ 21 |
| 0.61 | 0.292 | ≤ 10 | 11–21 | ≥ 22 |
| 0.62 | 0.302 | ≤ 11 | 12–22 | ≥ 23 |
| 0.63 | 0.312 | ≤ 11 | 12–22 | ≥ 23 |
| 0.64 | 0.322 | ≤ 11 | 12–23 | ≥ 24 |
| 0.65 | 0.332 | ≤ 12 | 13–24 | ≥ 25 |
| 0.66 | 0.342 | ≤ 12 | 13–24 | ≥ 25 |
| 0.67 | 0.352 | ≤ 12 | 13–25 | ≥ 26 |
| 0.68 | 0.363 | ≤ 13 | 14–26 | ≥ 27 |
| 0.69 | 0.374 | ≤ 13 | 14–27 | ≥ 28 |