Publications
Detailed Information
Microcystic meningiomas: radiological characteristics of 16 cases
Cited 35 time in
Web of Science
Cited 51 time in Scopus
- Authors
- Issue Date
- 2005-07-20
- Publisher
- Springer Verlag
- Citation
- Acta Neurochir (Wien). 2005 Sep;147(9):965-72; discussion 972. Epub 2005 Jul 18.
- Keywords
- Adult ; Aged ; Brain Edema/etiology/pathology/radiography ; Cerebral Angiography/methods ; Cerebral Arteries/pathology/radiography ; Female ; Humans ; Magnetic Resonance Imaging/methods ; Male ; Meningeal Neoplasms/blood supply/*pathology/*radiography ; Meningioma/blood supply/*pathology/*radiography ; Middle Aged ; Predictive Value of Tests ; Tomography, X-Ray Computed/methods
- Abstract
- BACKGROUND: As a rare subtype of meningioma, only a few reports deal with radiological characteristics of microcystic meningiomas and the problem remains controversial. The authors have analyzed the radiological findings of a series of microcystic meningiomas with a special focus on magnetic resonance images (MRI) and conventional angiography. METHOD: Sixteen patients of histologically proven microcystic meningiomas were included. Analysis of preoperative MRI including signal intensity characteristics, enhancement patterns and peritumoural edema were performed and correlated with angiographic and histological findings. Peritumoural edema was graded using edema index (EI) which was defined as the ratio of VE/VT. FINDINGS: The tumours were uniformly visualized as a high-signal mass lesion in T2-weighted images and as a low-signal mass lesion in T1-weighted images regardless of tumour vascularity shown by angiography. T2-weighted images revealed that peritumoural brain edema was severe in 11, moderate in 1, mild in 2 and negligible in 2 patients and this was closely related to the co-existence of irregular tumour marginal enhancement. However, other features failed to distinguish these lesions from other subtypes of meningioma. CONCLUSIONS: The cases presented demonstrate that characteristic MRI findings suggestive of microcystic meningiomas are; (1) low signal intensity mass in T1- and high signal intensity mass in T2-weighted images; (2) high incidence of peritumoural edema.
- ISSN
- 0001-6268 (Print)
- Language
- English
- URI
- http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=16028111
https://hdl.handle.net/10371/15547
- Files in This Item:
- There are no files associated with this item.
- Appears in Collections:
Item View & Download Count
Items in S-Space are protected by copyright, with all rights reserved, unless otherwise indicated.