This article has been accepted for publication and undergone full peer review but has not been through the copyediting, typesetting, pagination and proofreading process which may lead to differences between this version and the Version of Record. Please cite this article as doi: 10.1111/cup.13872 Title: Adenomatoid tumor of the skin: differential diagnosis of an umbilical erythematous plaque Keywords: Adenomatoid tumor, skin, umbilicus Short title: Adenomatoid tumor of the skin Authors: Ingrid Ferreira 1 , Olivier De Lathouwer 2 , Hugues Fierens 3 , Anne Theunis 1 , Josette André 1 , Nicolas de Saint Aubain 3 1 Dermatopathology laboratory, Department of Dermatology, Saint-Pierre University Hospital, Université Libre de Bruxelles, Brussels, Belgium. 2 Department of Plastic surgery, Centre Hospitalier Interrégional Edith Cavell, Waterloo, Belgium. 3 Department of Dermatology, Saint-Jean Hospital, Brussels, Belgium. 4 Department of Pathology, Jules Bordet Institute, Université Libre de Bruxelles, Brussels, Belgium. Acknowledgements: None Corresponding author: Ingrid Ferreira This article is protected by copyright. All rights reserved.