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, Melanocytic Nevus. Difference between a Birthmark, Mole and Nevus Stock Vector Illustration of growth, epidermal: 104955303 Encapsulation and Melanization Are Not Correlated to Successful Immune Defense Against Parasitoid Wasps in Drosophila melanogaster Drosophila are hosts to the first described parasitoid wasp of adult flies Nature Schematic representation of insects' immune effector mechanisms. (A) Download Scientific Diagram