Pigmented (Purple or Brown) Lesions in the Mouth melanotic macule Archives Kazemi Oral Surgery Facialart.com Pigmented Conjunctival Cancers (Primary Acquired Melanosis) New York Eye Cancer Center Maturational hyperpigmentation: An update Cosmoderma Nevus of Ota is a benign dermal melanocytic condition characterized by bluish grey or slate brown pigmentation involving the skin around the eye and ocular tissues. It occurs due to an increased number of Black and Brown: Non neoplastic Pigmentation of the Oral Mucosa Head and Neck Pathology Springer Nature Link