melanotic macule中文 Dark or pigmented spots in the mouth can be surprising to patients—and sometimes concerning. The truth is, many are completely harmless, but some can signal something that deserves a closer look. As 黑色素瘤- 维基百科，自由的百科全书

Mystery behind labial and oral melanotic macules: Clinical, dermoscopic and pathological aspects of Laugier Hunziker syndrome (Oral Melanotic Macule) Melanotic macule. Benign. Dark spot on labia (or lip). Analogous to lentigo simplex. Hyperpigmented basal keratinocytes & dermal melanophages. Slight in single basal melanocytes; NO nests. More info like this in Isolated Palmoplantar Lentiginosis CCID Dove Medical Press

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