Nonmelanoma Skin Cancer: Symptoms, Types & Treatment Oncology Letters Staging Melanocytic Skin Neoplasms Using High Level Pixel Based Features About Moles Types, Warning Signs, Causes, and Prevention Frontiers The WHO 2018 Classification of Cutaneous Melanocytic Neoplasms: Suggestions From Routine Practice Case Challenge! We have a 68 year old patient with no significant past medical history presenting for consultation. A progressively growing melanocytic lesion on the frontal region. Duration: Approximately 1 year. Symptoms: Non pruritic.