COMBINED ANALYSES OF CT AND CEREBRAL ANGIOGRAPHIC FEATURES OF BENIGN AND MALIGNANT MENINGIOMAS / 重庆医科大学学报

58 meningiomas verified by operation and pathology were reviewed, of them 13 cases had atypical CT findings, 10 cases were malignant meningiomas.The atypical CT manifestations are as follows, heterogeneous enhancement within the tumor mass, a few nonenhancing low density areas, hypocense area adjacent to tumor, ring-like enhancement; intratumoral hemorrhage, pathological basis of atypical-CT features of xmeningioma and CT and angiographic appearances of malignant meningiomas are discussed.For diagnosis of atypical and malignant meningiomas combined CT with angiogr-aphy examinations are recommended