Pigmented (Purple or Brown) Lesions in the Mouth Pigmented (Purple or Brown) Lesions in the Mouth Kazemi Oral Surgery Facialart.com 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 A Black Spot on the Upper Gum for Many Years: Melanotic Macule Springer Nature Link Pigmented Lesions of the Oral Mucosa Pocket Dentistry melanotic macule or non cancerous hyperpigmentation of a mucous? What is this? Pigmentation? Hlp : r askdentists