Encapsulation and Melanization Are Not Correlated to Successful Immune Defense Against Parasitoid Wasps in Drosophila melanogaster An interesting finding in melanocytic nevus that may alarm a pathologist and prompt a thorough search for other features of melanoma Herniation of a nevus nest into the lumen of 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, Dynamics of nevus development implicate cell cooperation in the growth arrest of transformed melanocytes eLife