Melanoma arising from partially biopsied moderately dysplastic nevus JAAD Case Reports Benign Pigmented Lesions and Malignant Melanoma Plastic Surgery KeyPlastic Surgery Key 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, Melanotic Macule Labial Lentigo (labial melanotic macule) Cancer Therapy Advisor