Large, Dark Lesion on the Arm Present Since Birth AFP Pigmented Lesions and Melanoma Plastic Surgery KeyPlastic Surgery Key Med #Melanocytic lesions (dermoscopy) Benign patterns Blue nevus: Homogeneous steel blue blue pigmentation. Common benign nevus: Regular, symmetric pigment network (often a neat reticular pattern). Benign nevus (globular cobblestone): Melanocytic nevi and melanoma: unraveling a complex relationship Oncogene A Clinical, Dermoscopic, and Histopathological Analysis of Common Acquired Melanocytic Nevi in Skin of Color JCAD The Journal of Clinical and Aesthetic Dermatology