“…KCs arise from subpopulations of interfollicular epidermal keratinocytes and hair follicle stem cells [ 26 , 27 , 28 , 29 ]. Basal cell carcinoma (BCC) and cutaneous squamous cell carcinoma (cSCC) are the two types of KC, representing the first and fifth most prevalent human malignancies worldwide [ 30 , 31 , 32 , 33 ]. Prominent risk factors for the development of KC include exposure to ultraviolet (UV) or ionizing radiation, fair skin (Fitzpatrick phototype I-III skin tones), age, chemical exposures (e.g., arsenic), certain drugs (e.g., BRAF inhibitors, cyclosporin, voriconazole, hydrochlorothiazide) and viruses such as human papillomavirus (HPV) [ 34 ].…”