Abstract
A 41-year-old man presented with a large mass bulging over the suprazygomatic temporal region. Neuroradiological examination showed that the huge extra-axial mass with osteolytic character originated from the upper surface of the petrous bone. Preoperative obliteration of the feeding arteries with superselective intravascular embolization was helpful for the total removal of the tumor. Histological examination revealed that the tumor consisted of massive fibrohistiocytic proliferation with numerous heavily hemosiderin-laden macrophages and numerous multinucleated giant cells. The most probable diagnosis was giant cell reparative granuloma. Therefore, no postoperative irradiation or other adjuvant therapy was given.
