This document discusses bone and soft-tissue tumors. It provides information on different types of bone tumors like osteosarcoma, chondrosarcoma, and Ewing's sarcoma. It also discusses approaches to musculoskeletal tumors including history, imaging, biopsy, and differential diagnosis. Surgical treatment options for bone cancers include resection, reconstruction, and prosthesis replacement. Limb salvage is preferred over amputation when possible. Follow-up care after treatment is also covered.