TY - CHAP M1 - Book, Section TI - Pigmented Lesions and Melanoma A1 - Pan, Brian S. A1 - Billmire, David A. A2 - Ziegler, Moritz M. A2 - Azizkhan, Richard G. A2 - Allmen, Daniel von A2 - Weber, Thomas R. Y1 - 2014 N1 - T2 - Operative Pediatric Surgery, 2e AB - Ninety-eight percent of Caucasian children have at least 1 nevus by early childhood. In contrast, melanoma accounts for only 2% of all pediatric malignancies.Physical features that may raise suspicion for malignant transformation include asymmetry, irregularity of the borders, variability in the color, and diameter greater than 5 mm (ABCD criteria).A Spitz nevus in its typical form is a benign melanocytic lesion that is a diagnostic and management challenge for both pathologists and clinicians secondary to the histologic features it can potentially share with melanoma.The nevus sebaceous of Jadassohn is a benign epidermal nevus most commonly encountered on the scalp and face with a reported incidence of basal cell carcinoma of 0.8%.Giant congenital nevi carry a lifetime malignancy risk ranging from 2.8 to 8.5% and 60% of these malignancies occurred within the first decade of life.Melanomas less than 1-mm thick should be excised with a 1-cm margin while for those greater than 1 mm in thickness, a 2-cm margin is acceptable.Surgical treatment options for large pigmented lesions include serial excision, skin grafting, and tissue expansion. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/03/28 UR - accesspediatrics.mhmedical.com/content.aspx?aid=1100439875 ER -