Affiliation: | 1. Department of Histopathology, Royal National Orthopaedic Hospital NHS Trust, Stanmore, UK;2. UCL Cancer Institute, Huntley Street, London, UK;3. Department of Anatomical Pathology, A. C. Camargo Cancer Centre, Sao Paulo, Brazil;4. Department of Radiology, Royal National Orthopaedic Hospital NHS Trust, Stanmore, UK;5. Bone Tumour Reference Centre at the Institute of Pathology, University Hospital Basel, Basel, Switzerland |