“…Radiation therapy (RT) represents an important adjuvant treatment modality for high-risk SCCs with invasion of deep tissues, perineural involvement or regional lymph node metastases [3,4,5,6,7]. Despite the frequency of aggressive cutaneous and extracutaneous malignancies, there have been relatively few reports of RT in individuals with XP [8,9,10,11,12,13,14,15,16,17,18,19,20,21,22].…”