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Prevalence of clinical and histological high-risk features in invasive SCCs
| High-risk features | Invasive SCC n=43 | Frequency |
|---|---|---|
| Location: lower lip, ear, scar, anogenital | 13 | 30.23% |
| Depth >4mm | 13 | 30.23% |
| Desmoplasia/infitration | 10 | 23.26% |
| Ulceration | 8 | 18.60% |
| Poor differentiation | 7 | 16.28% |
| Clark level ≥ 4 | 5 | 11.63% |
| Diameter >2cm | 3 | 6.98% |
| Perineural infiltration | 1 | 2.33% |
| > 1 high-risk feature | 18 | 41.86% |
| > 1 high-risk feature | 17 | 40% |
| (other than diameter>2cm) |
