Patient and tumour characteristics
| Characteristic | |
|---|---|
| Number | 25 |
| Mean age (range) in years | 76.7 (59–100) |
| Sex (M/F) | 10/15 |
| Mean tumour size (range) in cm | 2.5 (0.8–6.5) |
| Tumour size | |
| <2 cm | 11 |
| ⩾2 cm | 14 |
| Location | |
| Head and neck | 11 |
| Trunk | 3 |
| Extremities | 11 |
| Local recurrence | 8 |
| Metastasis | 11 |
| Dead | 10 |