Background: Basal cell carcinoma (BCC) is the most common cutaneous malignancy, accounting for 65% to 75% of all skin cancers.

• 背景和目的:基底细胞癌(basal cell carcinoma,BCC)是最常见的皮肤恶性肿瘤,起源于表皮及皮肤附属器的基底样细胞。