perianal melanotic macule Anorectal melanoma: surgical management guidelines according to tumour thickness Melanotic macule. Benign. Dark spot

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 Anorectal melanoma histopathological and immunohistochemical features and treatment ScienceDirect Anorectal Melanoma: A Rare Cause of Large Bowel Obstruction Cureus Mystery behind labial and oral melanotic macules: Clinical, dermoscopic and pathological aspects of Laugier Hunziker syndrome PMC

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