title: Intracranial dural chondrosarcoma.
abstract: Three cases of intracranial dural chondrosarcoma are reported. The radiologic appearance of this slow-growing, extraaxial malignant tumor is different from the more familiar skull-base chondrosarcoma and may mimic an atypical meningioma. Dural chondrosarcoma tends to be less calcified or even to lack matrix calcification; it is associated with bone erosion but not with bone destruction or hyperostosis; and it usually appears avascular at arteriography.
mesh_terms: D000328:Adult; D002813:Chondrosarcoma / Q000000981:diagnostic imaging*; D004388:Dura Mater; D005260:Female; D006801:Humans; D008297:Male; D008577:Meningeal Neoplasms / Q000000981:diagnostic imaging*; D008875:Middle Aged; D014057:Tomography, X-Ray Computed