Table 1.
Summary of clinical features.
| Characteristics | Values |
|---|---|
| Total number of patients | 47 |
| Median age at sampling (years) | 69 (range 44–93) |
| Gender | |
| Female | 24/47 (51%) |
| Male | 23/47 (49%) |
| Tumor location | |
| Sun-exposed | 39/47 (83%) |
| Non-sun-exposed | 8/47 (17%) |
| Premalignant lesion | |
| PAM | 24/47 (51%) |
| Nevus | 8/47 (17%) |
| De novo | 13/47 (28%) |
| Unknown | 2/47 (4%) |
| Tumor stage | |
| T1 | 24/47 (51%) |
| T2 | 12/47 (26%) |
| T3 | 8/47 (17%) |
| unknown | 3/47 (6%) |
| Histology | |
| Epithelioid | 21/47 (45%) |
| Spindle cells | 7/47 (15%) |
| Mixed | 13/47 (28%) |
| Unknown | 6/47 (13%) |
| Mitotic index | |
| Low (<11 figures/10 fields) | 18/47 (38%) |
| Intermediate (11–22 figures/10 fields) | 8/47 (17%) |
| High (>22 figures/10 fields) | 14/47 (30%) |
| Treatment | |
| Median number of surgeries (range) | 2 (1–8) |
| Number of exenterations | 6/47 (13%) |
| Adjuvant treatment before sampling | |
| adjuvant mitomycine C | 4/47 (9%) |
| adjuvant radiotherapy | 12/47 (26%) |
| Recurrences | |
| Number of metastatic recurrences | 8/47 (17%) |