MRI Diagnosis of Malignant Meningioma
- VernacularTitle:恶性脑膜瘤MR诊断
- Author:
Xiaodong WANG
;
Yulin GUO
;
Xiupeng YE
- Publication Type:Journal Article
- Keywords:
malignant;
meningiomas;
magnetic,resonance imaging
- From:
Journal of Practical Radiology
2001;0(05):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate MRI features of malignant meningioma,in order to improve diagnostic rate of the disease preoperatively.Methods 18 cases with intact MRI materials proved operatively and pathologically were collected.Results Most tumors showed heterogeneous and low signal intensity on T 1WI,(16/18 cases),and heterogeneous and high signal intensity on T 2WI,(14/18cases). 15 of 18 cases showed significant but inhomogeneous contrast enhancement.The tumors were irregular or lobulated in contour with all or part of the border ill-defined. Conclusion Malignant meningiomas do have characteristic MRI features besides in common with benign ones.
