Extraskeletal Osteosarcoma: Clinico-pathologic Features and Results of Multimodal Management

. Extraskeletal Osteosarcoma: Clinico-pathologic Features and Results of MultimodalManagement N. Fabbri, A. Tiwari, M. Umer, D. Vanel, M. Alberghini, P. Ruggieri, S. Ferrari, P.Picci, M. Mercuri Department of Musculoskeletal Oncology Istituto Ortopedico Rizzoli, Bologna,Italy 23rd EMSOS Meeting Birmingham, UK 5th-7th May 2010 Page 2. Extraskeletal OsteosarcomaBackground .About 1% of all soft tissue sarcomas .First described by Wilson in 1941 .Few largeseries then reported .Older individuals & usually worse surviva