Abstract
This report is a review of the findings of computed tomography and angiography of eight supratentorial gliomas with dural invasion. Computed tomography revealed localized increases in the thickness of ring enhancements at the sites of dural invasion in four cases, which was attributed to increased blood supplies by the meningeal vessels. Angiographically, feeders from the meningeal vessels entered the tumors mostly through relatively broad areas of tumor-dura attachment. A sunburst type of neovascularity from a meningeal artery was seen in only one case. In most such cases the differential diagnosis from meningioma was possible by the computed tomographic and angiographic findings. Selective external carotid angiography was the most important examination for diagnosing dural invasion by gliomas.
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