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.