Melanocytic lesions Libre Pathology Lichen Planus Pigmentosus with True Melanocytic Nests: A Case Report with a Comprehensive Literature Review a Melanoacanthoma of the upper labial mucosa. b Histopathologic Download Scientific Diagram Histopathological Findings of a Melanocytic Nevus A melanocytic nevus is a benign proliferation of melanocytes. Under the microscope, typical features include: Nests or clusters of uniform melanocytes located at the dermoepidermal junction, SciELO Brasil Lingual melanotic macule the first case report in an adult patient Lingual melanotic macule the first case report in an adult patient