Abstract
Osteosarcomas of the ribs are rarely reported but have a high potential for pulmonary metastases. The therapeutic strategies for this disease are not well defined. The primary treatment recommendations include wide resection with clear surgical margins and chest wall reconstruction if needed. We present a case of costal osteosarcoma with pleural and lung extension successfully treated by en-bloc thoracic resection with free surgical margins and chest wall reconstruction with rib titanium bars, polypropylene mesh and a rectus abdominis free flap with microvascular anastomoses. This case demonstrates the importance of this therapeutic strategy and highlights the need of early intervention in managing this disease.