Table 2.

Treatment and outcomes

Infiltration depth	At or above the skull 17 (54.8%)	Under the skull 10 (32.3%)		Unclear 4 (12.9%)
Pathological diagnosis	SCC 27 (87.1%)		SAH 4 (12.9%)
Reconstructive strategies	Free flap 12 (38.7%)	Local flap 2 (6.5%)	Skin grafting 6 (19.3%)	No surgery 4 (12.9%)	Unclear 7 (22.6%)
Surgical results	Complete resection 16 (51.6%)	Palliative resection or no surgery 8 (25.8%)		Unclear 7 (22.6%)
Other treatments	Radiotherapy 12 (38.7%)	No 14 (45.2%)		Unclear 5 (16.1%)
Survival outcomes	Tumour free 16 (51.6%)	Death 7 (22.6%)		Lost follow‐up 8 (25.8%)

Abbreviations: SCC, squamous cell carcinoma; SAH, squamous atypical hyperplasia.