AD :: Annals of Dermatology Genital melanotic macules: Clinical, histologic, immunohistochemical, and ultrastructural features Journal of the American Academy of Dermatology ORAL MELANOTIC MACULE (OMM) (Also called focal melanosis labial melanotic macule) A benign, localized, flat pigmented lesion of the oral mucosa Caused by a focal increase in melanin production Pathology Outlines Melanotic macule Unveiling the Masquerader: A Rare Case of Pigmented Erythroplasia of Queyrat With Successful Multimodal Treatment Cureus Mystery behind labial and oral melanotic macules: Clinical, dermoscopic and pathological aspects of Laugier Hunziker syndrome