Brain Metastases in a 12-Year-Old Girl with Osteosarcoma: A Case Report

Introduction: Osteosarcoma accounts for about 3% of childhood cancers and this tumor is the mostcommonprimary bone tumor. Lung and bones are the mostcommonsites of metastases. Brain metastases are very rare and account for approximately 1.8% to 5.6% of all metastases. Case Presentation: In this study,wereported osteosarcoma in a 12-year-old girl with primary lung metastases and subsequent brain metastases. Conclusions: In patients with osteosarcoma and evidence of pulmonary metastasis, performing brain imaging, even without evidence of neurologic sign and symptoms is reasonable.