Table 2 Contrasting criteria for Spitz tumors from reports in the literature30
Criterion | Kernen and Ackerman 7 | Reed et al 26 | Weedon and Little 12 | Paniago-Pereira et al 11 |
|---|---|---|---|---|
Pagetoid spread | Not stated | Not stated | Occasional | Sparse |
Nuclear atypia | Absent | Minimal | Present | Not important |
Giant cells | Occasional | Present | Present | Not helpful |
Epidermis | Thinned | Hyperplastic | Hyperplastic | Hyperplastic |
Cell type | Mostly spindled | No comment | Mostly spindled | Mostly spindled |
Dermal mitoses | Rare | Variable (rarely high) | Common | Occasional |
Atypical mitoses | Rare | Not stated | Uncommon | Rare |
Maturation with descent | Mostly absent | Present | Mostly absent | Prominent |
Deep dermal margin | Pushing | Infiltrative | Infiltrative | Pushing |
