RT Book, Section A1 Emanuel, Patrick A1 Izzard, Mark SR Print(0) ID 1199482444 T1 Introduction 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=1199482444 RD 2024/04/25 AB The central goal of all skin cancer surgery is a complete tumor excision with the least possible morbidity. This seems like a simple goal, but the way margins are discussed can be confusing. Take for example Merkel cell carcinoma, for which a 1- to 3-cm excision margin is recommended. Does this mean 1 cm or 3 cm? Somewhere in the middle? Does it mean the preoperative clinical margin? Or is it the intraoperative margin? Histopathological margin? How are these margins different and what do they imply about the certainty that no tumor has been left behind?