melanotic macule increased melanocytes 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 Pathology Outlines - Melanotic macule

Pathology Outlines Melanotic macule Pigmented lesions of the oral cavity: An Update PMC Smoker's Melanosis Benign oral mucosal pigmentation seen in smokers Due to increased melanin production, not melanocyte number Clinical Diffuse brown macules patches Usually flat, irregular Most common Melanocyte an overview ScienceDirect Topics Pigmented skin lesions are areas of increased melanin or melanocytic proliferation that range from common benign findings to lesions requiring closer clinical evaluation. Recognizing the characteristic features of common benign pigmented skin Oral melanoacanthoma and oral melanotic macule: a report of 8 cases, review of the literature, and immunohistochemical analysis

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