A Case of Benign Chondroblastoma of the Temporal Bone

ABSTRACT

A 39 year-old male with swelling of the left temporal region, the left facial numbness, visual disturbance and slurred speech had been treated. Pain skull film showed an osteolytic bony defect in the left temporal squama with sclerotic margin. Left carotid angiogram showed a mass effect on the subtemporal region. CT scan revealed a well demarcated homogenous increased density of a snowman appearance in the left temporoparietal region. On operation, the temporal extradural highly vascularized mass was totally removed piecemeal, and another 6x5x5 cm of grayish brown rubbery-hard mass which located in the temporal lobe parenchyme was removed en bloc. The mass seemed to be extended from the extradural region. The histological diagnosis was a benign chondroblastoma. The patient was discharged without any evidence of neurological deficit.