Table 2: Patient and disease characteristics.

CharacteristicValue

Total174
Newly diagnosed 108 (62%)
Previous excision66 (38%)

Mean age (yrs)67 (range: 15–93)

Depth
Superficial 79 (46%)
Deep23 (13%)

Mean tumour size (cm)8.4 (range: 0.3–31)
New diagnosis 9.9
Previous excision5.9

Grade
High 87 (51%)
Intermediate 62 (36%)
Low23 (13%)

Metastases41 (24%)
At diagnosis 6 (3%)
Following diagnosis35 (20%)

Local recurrence at 5-year cumulative risk
Planned excision 15%
Unplanned excision45%

Risk of local recurrence by tumour grade
Low 22%
Intermediate 28%
High8%

Surgical margins
Wide 24%
Marginal 50%
Intralesional26%