RT Journal Article T1 European consensus-based interdisciplinary guideline for melanoma. Part 1: Diagnostics: Update 2022. A1 Garbe, Claus A1 Amaral, Teresa A1 Peris, Ketty A1 Hauschild, Axel A1 Arenberger, Petr A1 Basset-Seguin, Nicole A1 Bastholt, Lars A1 Bataille, Veronique A1 Del Marmol, Veronique A1 Dréno, Brigitte A1 Fargnoli, Maria C A1 Forsea, Ana-Maria A1 Grob, Jean-Jacques A1 Höller, Christoph A1 Kaufmann, Roland A1 Kelleners-Smeets, Nicole A1 Lallas, Aimilios A1 Lebbé, Celeste A1 Lytvynenko, Bohdan A1 Malvehy, Josep A1 Moreno-Ramirez, David A1 Nathan, Paul A1 Pellacani, Giovanni A1 Saiag, Philippe A1 Stratigos, Alexander J A1 Van Akkooi, Alexander C J A1 Vieira, Ricardo A1 Zalaudek, Iris A1 Lorigan, Paul A1 European Dermatology Forum (EDF), the European Association of Dermato-Oncology (EADO), and the European Organization for Research and Treatment of Cancer (EORTC) K1 AJCC classification K1 Confocal reflectance microscopy K1 Cutaneous melanoma K1 Dermatoscopy K1 Follow-up examinations K1 Imaging diagnostics K1 Mutation testing K1 Primary diagnosis K1 Sequential digital dermatoscopy K1 Total body photography AB Cutaneous melanoma (CM) is potentially the most dangerous form of skin tumor and causes 90% of skin cancer mortality. A unique collaboration of multi-disciplinary experts from the European Dermatology Forum (EDF), the European Association of Dermato-Oncology (EADO) and the European Organization for Research and Treatment of Cancer (EORTC) was formed to make recommendations on CM diagnosis and treatment, based on systematic literature reviews and the experts' experience. The diagnosis of melanoma can be made clinically and shall always be confirmed with dermatoscopy. If a melanoma is suspected, a histopathological examination is always required. Sequential digital dermatoscopy and full body photography can be used in high-risk patients to improve the detection of early melanoma. Where available, confocal reflectance microscopy can also improve clinical diagnosis in special cases. Melanoma shall be classified according to the 8th version of the American Joint Committee on Cancer classification. Thin melanomas up to 0.8 mm tumor thickness do not require further imaging diagnostics. From stage IB onwards, examinations with lymph node sonography are recommended, but no further imaging examinations. From stage IIC onwards whole-body examinations with computed tomography (CT) or positron emission tomography CT (PET-CT) in combination with brain magnetic resonance imaging are recommended. From stage III and higher, mutation testing is recommended, particularly for BRAF V600 mutation. It is important to provide a structured follow-up to detect relapses and secondary primary melanomas as early as possible. There is no evidence to define the frequency and extent of examinations. A stage-based follow-up scheme is proposed which, according to the experience of the guideline group, covers the optimal requirements, but further studies may be considered. This guideline is valid until the end of 2024. YR 2022 FD 2022-05-12 LK http://hdl.handle.net/10668/22174 UL http://hdl.handle.net/10668/22174 LA en DS RISalud RD Apr 9, 2025