Pathology Outlines Invasive melanoma Oral Melanoacanthoma: Case Series of 33 Cases and Review of the Literature Head and Neck Pathology Springer Nature Link Pathology Outlines Nevi general 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 Frontiers Mucosal Melanoma: Pathological Evolution, Pathway Dependency and Targeted Therapy