SHERP

Microcystic meningiomas: radiological characteristics of 16 cases

Cited 0 time in webofscience Cited 0 time in scopus
Authors
Paek, S H; Kim, S H; Chang, K H; Park, C-K; Kim, J E; Kim, D G; Park, S-H; Jung, H-W
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
AdultAgedBrain Edema/etiology/pathology/radiographyCerebral Angiography/methodsCerebral Arteries/pathology/radiographyFemaleHumansMagnetic Resonance Imaging/methodsMaleMeningeal Neoplasms/blood supply/*pathology/*radiographyMeningioma/blood supply/*pathology/*radiographyMiddle AgedPredictive Value of TestsTomography, 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

http://hdl.handle.net/10371/15547
DOI
https://doi.org/10.1007/s00701-005-0578-3
Files in This Item:
There are no files associated with this item.
Appears in Collections:
College of Medicine/School of Medicine (의과대학/대학원)Neurosurgery (신경외과학전공)Journal Papers (저널논문_신경외과학전공)
  • mendeley

Items in S-Space are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse