melanotic hyperpigmentation Smokers melanosis . Oral pigmentation seen in heavy smokers . Investigations have shown ability of melanin to bind to noxious substances. . Exposure to polycyclic amines ( Nicotine & benzpyrene) has shown Plantar Hyperpigmentation | MDedge
Plantar Hyperpigmentation MDedge Pigmented lesions of the oral mucosa and perioral tissues: a flow chart for the diagnosis and some recommendations for the management ScienceDirect Facial frictional melanosis in Indian patients: Defining the entity Semantic Scholar Oral Mucosal Melanosis IntechOpen Oral pigmented lesions: Clinicopathologic features and review of the literature PMC Unusual Extensive Physiologic Pigmentation of the Tongue: A Case Report Cureus
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