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 PDF] Morphologic changes of acquired melanocytic nevi with eccentric foci of hyperpigmentation ("Bolognia sign") assessed by dermoscopy. Semantic Scholar Labial melanotic macule. B). Increased numbers of me lanocytes along Download Scientific Diagram Medium sized congenital melanocytic nevus spontaneously lightening in a pediatric patient and management JAAD Case Reports Six features of melanocytic lesions at level 1 of first step. a) Download Scientific Diagram Benign melanocytic naevi