Diabetic male, 76 years old, black skin, in peritoneal dialysis, main complaint of a non-healing foot ulcer. During examination, I found this single lesion on the the scalp by chance. Dermoscopy features of SCC: white circles, white structureless zones (keratin), blood spots. What's the best management for this specific patient? Is surgical excision safe? Shall I refer to radiotherapy instead of operating him?