Cranial chondrosarcomas. Report of four cases and review of the literature.

Four cases of chondrosarcoma of the skull are presented. The clinical and radiographic features and differential diagnosis are discussed. The previous literature is reviewed and all cases tabulated. Computed tomography and angiography are important radiologic tools in suggesting the correct diagnosis prior to operation. Stippled, finely speckled, or amorphous calcification or bony erosion on radiographic studies and an avascular mass angiographically may suggest the diagnosis.