RT Book, Section A1 Emanuel, Patrick A1 Ziegler-Rodriguez, Gonzalo A2 Emanuel, Patrick A2 Izzard, Mark SR Print(0) ID 1199483124 T1 Melanoma T2 Margin Control Surgery of the Skin: Concepts, Histopathology, and Applications YR 2023 FD 2023 PB McGraw Hill PP New York, NY SN 9781264285990 LK dermatology.mhmedical.com/content.aspx?aid=1199483124 RD 2024/04/19 AB One of the hallmarks of the natural world is variation. For instance, the spectrum of visible light is infinitely varied, and though the difference between the blinding sunlight of midday and the impenetrable blackness of an underground cave is stark, between these extremes lie gradations that the eye cannot always distinguish. Similarly, a key issue faced when assessing the margins of lentigo maligna (LM) is to determine whether melanocytes represent the periphery of melanoma or background melanocytes on sun-damaged skin.