Imaging Diagnosis of Atypical Meningioma
- VernacularTitle:非典型性脑膜瘤的影像学诊断
- Author:
Tianhao YANG
;
Shimin CUI
;
Leili ZHANG
;
Meili LIU
;
Song JIN
- Publication Type:Journal Article
- Keywords:
meningioma;
MRI;
tomography,X-ray computed;
DSA
- From:
Journal of Practical Radiology
2001;0(05):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To analyse imaging features of atypical meningioma.Methods There were 17 cases with atypical meningiomas proved by pathology,7 cases were male,10 cases were female,ranged in age from 34～69 years.17 cases all examined with CT,and 10 cases with CT enhanced scanning;12 cases examined with MRI and 8 cases with MR enhanced scanning,5 cases examined with DSA.Results The major imaging features of atypical meningioma included:the borders of tumors were mostly irregular,nonhomogeneous density or signal on plain CT and MRI,nonhomogeneous enhancement on enhanced CT and MRI.Cystic and necrotic changing and the invasion of cranial bone and adjacent structure could be seen.5 cases with dural tail sign on MRI,3 of them,this sign was short,thick and irregular.Heavy staining was showed on DSA.Conclusion Atypical meningiomas are of some clinical and imaging features.
