Mutational analysis using Sanger and Next Generation Sequencing in sporadic spindle cell hemangiomas: a study of 19 cases Roel W ten Broek (1) , Elise M Bekers (1), Wendy W J de Leng (2), Eric Strengman (2), Bastiaan BJ Tops (1, 3), Heinz Kutzner (4), Jan Willem Leeuwis (5), Joost M van Gorp (6), David H Creytens (7), Thomas Mentzel (4), Paul J van Diest (2) Astrid Eijkelenboom (1) and Uta Flucke (1, 2, 3). 1) Department of Pathology, Radboud University Medical Centre, Nijmegen, The Netherlands 2) Department of Pathology, University Medical Center Utrecht, Utrecht, The Netherlands 3) Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands 4) Dermatopathology Bodensee, Friedrichshafen, Germany 5) Department of Pathology, Rijnstate Hospital, Arnhem, The Netherlands 6) Department of Pathology, Diakonessenhuis Utrecht, The Netherlands 7) Department of Pathology, Ghent University Hospital, Ghent University, Ghent, Belgium 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 an ‘Accepted Article’, doi: 10.1002/gcc.22501 This article is protected by copyright. All rights reserved.