Large, Dark Lesion on the Arm Present Since Birth AFP Macules With Irregular Borders Clinical Advisor Giant Congenital Melanocytic Nevi of the Head and Neck: Clinical Update and Advances in Treatment Sarah A. Applebaum, Joshua P. Weissman, Emily S. Chwa, Stuti P. Garg, Arun K. Gosain, 2022 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): COM March 2009 Diagnosis UW School of Dentistry Melanotic Macules, Naevi, and Melanoma Springer Nature Link