RESUMEN
INTRODUCTION AND IMPORTANCE: Chest wall tumour could grow from various tissues composing the chest wall. Diagnosis and treatment of patients with chest wall tumour pose several challenges. CASE PRESENTATION: We present a case of 55 year old woman with chief complaint of a painfull mass on her chest wall. Patient was diagnosed with osteosarcoma of the ribs. Patient underwent surgery and was hospitalized for seven days before discharged. CLINICAL DISCUSSION: Osteosarcoma of the ribs is a rare case with wide resection as the main treatment. In this case, chest wall reconstruction was needed to prevent impaired chest wall mechanical function in respiration. CONCLUSION: Diagnosis and treatment of osteosarcoma of the ribs pose challenges. The main treatment of the osteosarcoma of the ribs is wide resection, followed by reconstruction of chest wall when needed. Reconstruction could be performed with autologous tissue, gore-tex, and mesh. The adjuvant chemotherapy was considered to give for better outcome.