Subungual Melanocytic Lesions: Key Clinical and Pathologic Concepts and Biopsy Techniques Actas Dermo Sifiliogrficas Differential Diagnosis of Pigmented Lesions in the Oral Mucosa: A Clinical Based Overview and Narrative Review 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 Macular Pigmented Oral Mucosal Lesions: An Amalgam Tattoo Case Report Dentistry Today COM Dec. 2011 Diagnosis UW School of Dentistry Melanocytic Lesions and Disorders of Pigmentation Obgyn Key