Cranial computed tomographic appearance of chondrosarcoma of the base of the skull.

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Abstract
Five patients with a histologic diagnosis of chondrosarcoma are discussed with special attention to evaluation of these lesions by cranial computed tomography (CCT). These patients displayed findings that are highly suggestive of chondrosarcoma: high absorption abnormality on plain CCT scans, contrast enhancement and osteolytic changes of the contiguous bone. Treatment consisted of surgery and subsequent radiation therapy. CCT played an important part in diagnosing and determining the extent of the chondrosarcomas.