[Cystic meningioma. Apropos of 6 cases].

We report six cases of meningioma, uncommon tumors which accounted for 2.7 of all meningiomas observed in our series. Computed tomography was performed in all patients and produced the diagnosis in only 40% of the cases. Surgical treatment was given. Histological examinations of the surgical specimens confirmed the diagnosis. CT and magnetic resonance imaging were sometimes misleading, suggestive of metastasis or glioblastoma. Selective carotid arteriography with opacification of the external carotid artery established the diagnosis. Prognosis was good after surgery.