The sacral chordoma margin.

• Radaelli S Department of Surgery, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy. Electronic address: stefano.radaelli@istitutotumori.mi.it.
• Fossati P MedAustron Ion Therapy Center, Wiener Neustadt, Austria.
• Stacchiotti S Department of Medical Oncology, Fondazione IRCCS Istituto Nazionale Tumori, Milano, Italy.
• Akiyama T Department of Orthopeadic Surgery, Saitama Medical Center, Jichi Medical University, Saitama, Japan.
• Asencio JM General Surgery III Department and Liver Transplant Unit, Hospital General Universitario Gregorio Marañón, Madrid, Spain.
• Bandiera S Department of Oncologic and Degenerative Spine Surgery, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy.
• Boglione A Medical Oncology Unit, Ospedale Humanitas, Gradenigo, Torino, Italy.
• Boland P Orthopedic Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, USA.
• Bolle S Département de Radiothérapie, Gustave-Roussy Cancer Campus, Villejuif, France.
• Bruland Ø University of Oslo, Institute for Clinical Medicine and Department of Oncology, Oslo University Hospital-Norwegian Radium Hospital, Oslo, Norway.
• Brunello A Department of Clinical and Experimental Oncology, Medical Oncology 1st Unit, Istituto Oncologico Veneto IOV-IRCCS, Padova, Italy.
• Bruzzi P Dipartimento di Epidemiologia Clinica, IRCCS, AOU San Martino - IST, Genova, Italy.
• Campanacci D Department of Orthopedic Oncology, Azienda Ospedaliero Universitaria Careggi, Firenze, Toscana, Italy.
• Cananzi F Surgical Oncology Unit - Humanitas Clinical and Research Center, Rozzano, Italy.
• Capanna R 1st Orthopedic Division of Pisa University, Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy.
• Casadei R Department of Orthopedics, Istituto Ortopedico Rizzoli, University of Bologna, Bologna, Italy.
• Cordoba A Department of Radiotherapy, Oscar Lambret Comprehensive Cancer Center, Lille, France.
• Court C Orthopaedic and Traumatology Department, Spine and Tumor Unit, Bicetre University Hospital, AP-HP Paris, Univ. Paris-Sud Orsay, France.
• Dei Tos AP Department of Pathology and Molecular Genetics, Treviso General Hospital, Treviso, Italy; Department of Medicine, University of Padova School of Medicine, Padova, Italy.
• DeLaney TF Department of Radiation Oncology, Massachusetts General Hospital, Boston, MA, USA.
• De Paoli A Department of Radiation Oncology, Centro di Riferimento Oncologico, National Cancer Institute, Aviano, Italy.
• De Pas TM Division of Medical Oncology for Melanoma & Sarcoma, IEO, European Institute of Oncology IRCCS, Milan, Italy.
• Desai A Department of Sarcoma and General Surgery, Midlands Abdominal and Retroperitoneal Sarcoma Unit, University Hospital Birmingham, NHS Foundation Trust, Birmingham, UK.
• Di Brina L Radiotherapy and Radiosurgery, Humanitas Clinical and Research Center, Rozzano, Milano, Italy.
• Donati DM Department of Orthopedics, Istituto Ortopedico Rizzoli, University of Bologna, Bologna, Italy.
• Fabbri N Orthopedic Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, USA.
• Fiore MR Radiotherapy Unit, National Center of Oncological Hadrontherapy (CNAO) Pavia, Italy.
• Frezza A Department of Medical Oncology, Fondazione IRCCS Istituto Nazionale Tumori, Milano, Italy.
• Gambarotti M Department of Pathology, IRCCS Rizzoli Orthopaedic Institute, Bologna, Italy.
• Gasbarrini A Department of Oncologic and Degenerative Spine Surgery, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy.
• Georg P MedAustron Ion Therapy Center, Wiener Neustadt, Austria.
• Grignani G Medical Oncology-Sarcoma Unit, Istituto di Candiolo-Fondazione del Piemonte per L'Oncologia, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Candiolo, Italy.
• Hindi N Instituto de Biomedicina (IBIS), Medical Oncology Department, Hospital Universitario Virgen del Rocio, Sevilla, Spain.
• Hug EB MedAustron Ion Therapy Center, Wiener Neustadt, Austria.
• Jones R Royal Marsden Hospital and Institute of Cancer Research, London, UK.
• Kawai A Department of Musculoskeletal Oncology, National Cancer Center, Tokyo, Japan.
• Krol AD Department of Radiation Oncology, Leiden University Medical Center, Leiden, the Netherlands.
• Le Grange F University College London Hospitals NHS Foundation Trust and the London Sarcoma Service, UK.
• Luzzati A Centro di Chirurgia Ortopedica Oncologica e Ricostruttiva del Rachide, IRCCS Istituto Ortopedico Galeazzi, Milano, Italy.
• Marquina G Department of Medical Oncology, Hospital Clinico San Carlos, Madrid, Spain.
• Martin-Benlloch JA Department of Orthopaedic Surgery, Hospital Clinico Universitario de Valencia, Valencia, Spain.
• Mazzocco K Applied Research Division for Cognitive and Psychological Science, European Institute of Oncology, Department of Oncology and Hemato-Oncology, University of Milan, Milano, Lombardia, Italy.
• Navarria F Department of Radiation Oncology, Centro di Riferimento Oncologico, National Cancer Institute, Aviano, Italy.
• Navarria P Radiotherapy and Radiosurgery, Humanitas Clinical and Research Center, Rozzano, Milano, Italy.
• Parchi PD 1st Orthopedic Division of Pisa University, Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy.
• Patel S Department of Sarcoma Medical Oncology, Division of Cancer Medicine, University of Texas M.D. Anderson Cancer Center, Houston, USA.
• Pennacchioli E Division of Melanoma, Soft Tissue Sarcomas and Rare Tumors, European Institute of Oncology, Milan, Italy.
• Petrongari MG Department of Radiation Oncology, Regina Elena National Cancer Institute, Rome, Italy.
• Picci P Laboratory of Experimental Oncology, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy.
• Pollock R Royal National Orthopaedic Hospital NHS Trust, Brockley Hill, Stanmore, Middlesex, UK.
• Porcu L Laboratory of Methodology for Clinical Research, Department of Oncology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Italy.
• Quagliuolo V 1st Orthopedic Division of Pisa University, Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy.
• Sangalli C Department of Radiation Therapy, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy.
• Scheipl S Department of Orthopaedics and Trauma, Medical University of Graz, Graz, Austria.
• Scotto GM Department of Medical Oncology, Hospital Clinico San Carlos, Madrid, Spain.
• Spalek M Department of Radiotherapy I, Maria Sklodowska-Curie Institute-Oncology Center, Warsaw, Poland.
• Steinmeier T Department of Particle Therapy, University Hospital Essen, West German Proton Therapy Centre Essen (WPE), West German Cancer Center (WTZ), Germany.
• Timmermann B Department of Particle Therapy, University Hospital Essen, West German Proton Therapy Centre Essen (WPE), West German Cancer Center (WTZ), German Cancer Consortium (DKTK), Germany.
• Trama A Evaluative Epidemiology Unit, Fondazione IRCCS Istituto Nazionale Tumori di Milano, Milan, Italy.
• Uhl M Department of Radiation Oncology, University of Heidelberg, Heidelberg, Germany.
• Valverde C Department of Medical Oncology, Vall d'Hebron University Hospital, Barcelona, Spain.
• Varga PP National Center for Spinal Disorders, Budapest, Hungary.
• Verges R Radiation Oncology Department, Vall d'Hebron University Hospital, Barcelona, Spain.
• Weber DC Centre for Proton Therapy, Paul Scherrer Institut, Villigen PSI, Switzerland.
• Zoccali C Orthopedic Oncology Unit, Department of Experimental Clinical Oncology, Regina Elena National Cancer Institute, Rome, Italy.
• Casali PG Department of Medical Oncology, Fondazione IRCCS Istituto Nazionale Tumori, Milano, Italy; Department of Medical Oncology and Haemato-Oncology, University of Milan, Milan, Italy.
• Sommer J Chordoma Foundation, Durham, NC, USA.
• Gronchi A Department of Surgery, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy.

Radiation therapy

Sacral chordoma

Surgery

Surgical margins