Table 1.

 Patient and tumour characteristics

Characteristic
Number	25
Mean age (range) in years	76.7 (59–100)
Sex (M/F)	10/15
Mean tumour size (range) in cm	2.5 (0.8–6.5)
Tumour size
<2 cm	11
⩾2 cm	14
Location
Head and neck	11
Trunk	3
Extremities	11
Local recurrence	8
Metastasis	11
Dead	10