Vitiligo is an acquired depigmentation disorder of great cosmetic importance characterized by depigmented patches induced by epidermal melanocyte destruction.

• 白癜风是一种较常见的色素脱失性疾病，临床上以表皮黑素细胞破坏缺失而出现色素脱失斑为主要特征，严重影响患者的外观美容。