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Frequency of residual melanoma on wide local excision by biopsy margin status.
| Residual melanoma on WLE | Present | Absent | P value |
|---|---|---|---|
| Biopsy margin status | |||
| Negative | 14/128 (11%) | 114/128 (89%) | Reference |
| Any margin positive | 107/204 (52%) | 97/204 (48%) | <0.001 |
| Deep margin positive | 25/49 (51%) | 24/49 (49%) | <0.001 |
WLE: wide local excision.
