Nucleic acid index of melanocytic lesions
| Mean (SD) NAI | Diagnosis, site | Breslow thickness | Mitotic index (/10 HPF) |
|---|---|---|---|
| *Estimated because the lesion occupied only 2 HPF. | |||
| HPF, high power field; NAI, nucleic acid index; N/D, not determined. | |||
| 1.2 (0.3) | Malignant melanoma, foot | 7.6 | 8 |
| 1.4 (0.1) | Malignant melanoma, back | 6 | 10 |
| 1.5 (0.2) | Malignant melanoma, eyebrow | 4.0 | 10§ |
| 1.6 (0.5) | Malignant melanoma, back | 2.6 | 30 |
| 1.6 (0.1) | Metastatic melanoma, axilla | N/D | N/D |
| 1.7 (0.1) | Malignant melanoma, knee | 7.0 | 5 |
| 1.7 (0.2) | Melanoma in situ, ear | N/D | N/D |
| 2.2 (0.3) | Malignant melanoma, ankle | 0.53 | 5 |
| 2.2 (0.4) | Malignant melanoma, head | 2.0 | 5 |
| 2.7 (0.2) | Malignant melanoma, back | 4.4 | 3 |
| 2.7 (0.7) | Malignant melanoma, chest | 1.87 | 5* |
| 2.7 (0.3) | Malignant melanoma, breast | 0.34 | 5* |
| 2.8 (0.6) | Malignant melanoma, back | 1.2 | 5 |
| 2.9 (0.5) | Dysplastic naevus, abdomen | N/D | N/D |
| 3.5 (0.4) | Benign naevus, head | N/D | N/D |
| 3.6 (0.5) | Dysplastic naevus, groin | N/D | N/D |
| 4.2 (0.3) | Dysplastic naevus, breast | N/D | N/D |
| 4.3 (0.5) | Benign naevus, neck | N/D | N/D |
| 4.6 (0.3) | Dysplastic naevus, not provided | N/D | N/D |
| 5.1 (0.5) | Benign naevus, axilla | N/D | N/D |
| 5.8 (0.8) | Dysplastic naevus, back | N/D | N/D |
| N/D | Seven benign naevi | N/D | N/D |