Chondroblastoma with Secondary Aneurysmal Bone Cyst

摘要

We present the case of a chondroblastoma with secondary aneurysmal bone cyst arising in a posterior rib. The tumor was initially detected on a chest radiograph obtained for evaluation of chest wall pain. This case illustrates the importance of a systematic search pattern in evaluation of chest radiographs. The following report reviews the clinical, radiologic, and pathologic characteristics of primary bone tumors and presents a differential diagnosis for posterior mediastinal mass, then paraspinal osseous mass.