Grading of dysplastic naevi
| Parameter | Mild | Moderate | Severe |
|---|---|---|---|
| Modified from Weinstock et al.29 | |||
| Nuclear size | Approximate size of keratinocyte nucleus | 1–2× keratinocyte nucleus | 2× or greater than keratinocyte nucleus |
| Nuclear pleomorphism | Mild | Moderate | Severe |
| Chromatin | Hyperchromatic | Hyperchromatic or vesicular | Vesicular |
| Nucleolus | Absent or small | Absent or small | Prominent and enlarged |
| Cytoplasm | Usually little but sometimes abundant with dusty pigmentation | Usually little but sometimes abundant with dusty pigmentation | Often abundant |