Evidence and consensus based (S3) Guidelines for the Treatment of Actinic Keratosis – International League of Dermatological Societies (ILDS) in cooperation with the European Dermatology Forum (EDF)

1 Division of Evidence Based Medicine (dEBM), Department of Dermatology, Venerology and Allergology, Charité – Universitätsmedizin Berlin, Berlin, Germany 2 Skin Cancer Center (HTCC), Department of Dermatology, Venerology and Allergology, Charité – Universitätsmedizin Berlin, Berlin, Germany. Now: Department of Dermatology, Venerology and Allergology, St. Josef-Hospital, Universitätsklinikum der Ruhr-Universität Bochum, Bochum, Germany 3 Department of Dermatology, Mayo Clinic, Scottsdale, Arizona, USA 4 Centro Dermatologia Epidermis, Instituto CUF and Faculty of Medicine of University of Porto, Porto, Portugal 5 Skin and Cancer Foundation Victoria, Carlton: St. Vincent’s Hospital Melbourne, Fitzroy; and The University of Melbourne, Melbourne, Victoria, Australia 6 Division of Dermatology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada; Mediprobe Research Inc., London, Ontario, Canada 7 Department of Dermatology, Medical University of Graz, Austria 8 Department of Dermatology, Henry Ford Hospital, Detroit, Michigan, USA 9 Dermatology Laser Center of Maui, Kihei, Hawaii, USA 10 Mediprobe Research Inc., London, Ontario, Canada 11 Eastern Virginia Medical School, Division of Dermatology and Virginia Clinical Research Inc, Norfolk, Virginia, USA 12 Division of Dermatopathology, Department of Dermatology, Venerology and Allergology, Charité – Universitätsmedizin Berlin, Berlin, Germany 13 Department of Dermatology, Whipps Cross University Hospital, London, UK 14 Departments of Pathology and Dermatology, Wake Forest Baptist Medical Center, Winston-Salem, North Carolina, USA 15 Department of Dermatology, Northern Medical School, University of Sydney, Sydney, Australia 16 Dermatology, Surgery, and Otolaryngology, Oregon Health & Science University; Surgical and Cosmetic Dermatology and Clinical Operations, Oregon Health and Science University Knight Cancer Institute, Portland, Oregon USA 17 Faculty of Medicine, Hospital das Clínicas, Universidade de São Paulo, São Paulo, Brazil