CYSTIC MENINGIOMAS - A REPORT OF 5 CASES

Five cases of cystic meningioma are reported. These rare tumors usuall y comprise a cystic component within or adjacent to a solid component. Computed tomography and magnetic resonance imaging are sometimes misl eading, suggestive of a metastasis or a glioblastoma. Selective caroti d arteriography with opacification of the external carotid artery esta blishes the diagnosis. In patients with no primary cancer, solitary cy stic tumors must be removed surgically to allow a histologic study. Th e prognosis after surgery is good.