RESUMO
Benign bone tumors can be found in the following clinical situations: 1) incidental findings on chest radiograph for health screening without symptoms or radiographs after traffic accident; 2) radiographs for other orthopedic problems, such as osteoarthritis; and 3) pain caused by the tumor. Knowledge of various diseases and their clinical characteristics is required for diagnosis of benign bone tumors. In addition, one should consider carefully whether or not the lesion has the characteristics of benign bone tumor or possibility of malignancy so that proper treatment can be decided. In case the diagnosis cannot be confirmed, even though benign bone tumor is suspected on radiography, follow-up radiographs should be taken to rule-out malignant bone tumors.