A: Asymmetry of mole
B: Border irregularity
C: Colour variegation
D: Diameter more than 6mm
E: Evolving lesion with changes over time
Clarke's level (reflects level of invasion through dermis)
I : not invaded pass basement membrane
II: involvement of superficial dermis
III: involvement of deep dermis
IV: involvement of subcutis
Breslow's thickness
| Tumor Depth | Approximate 5 year survival |
|---|---|
| <1 mm | 95-100% |
| 1 - 2 mm | 80-96% |
| 2.1 - 4 mm | 60-75% |
| >4 mm | 50% |
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