In this issue of Dermatologic Clinics, guest editor Dr. Stan N. Tolkachjov brings his considerable expertise to Cutaneous Oncology Update. Top experts in the field cover key topics such as T-cell lymphomas; B-cell lymphomas; Mohs micrographic surgery; mesenchymal carcinomas; cutaneous oncology in the immunosuppressed; approaches to tumors of the nail unit and genitalia; and more.