BRAF and skin cancer: According to the timespan cluster map generated by CiteSpace software (Figure 8), keywords in the field of CSCC from 2012 to middle 2022 can be divided into 7 clusters: cutaneous squamous cell carcinoma, sentinel lymph node biopsy, skin cancer, BRAF inhibitor, human papillomaviruses and human papillomaviruses and P63 expression.