恶性小痣

定义

真皮-表皮交界处非典型黑素细胞的非典型增生，没有乳头状或网状真皮的浸润。黑素细胞增生与光化损害和表皮萎缩有关。它通常发生在阳光照射下的老年人皮肤。它是原位黑色素瘤的一种形式，大约5%的病例会发展为恶性雀斑样黑色素瘤。

An atypical proliferation of atypical melanocytes in the dermal-epidermal junction, without infiltration of the papillary or reticular dermis. The melanocytic proliferation is associated with actinic damage and epidermal atrophy. It usually occurs in the sun-exposed skin of elderly people. It is a form of melanoma in situ and in approximately 5% of cases it progresses to lentigo maligna melanoma.

索引词 可用于检索该条目的同义词与别名

• 恶性小痣
• 哈奇森黑素雀斑