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Microcystic meningiomas: radiological characteristics of 16 cases

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dc.contributor.authorPaek, S H-
dc.contributor.authorKim, S H-
dc.contributor.authorChang, K H-
dc.contributor.authorPark, C-K-
dc.contributor.authorKim, J E-
dc.contributor.authorKim, D G-
dc.contributor.authorPark, S-H-
dc.contributor.authorJung, H-W-
dc.date.accessioned2009-11-25T23:57:14Z-
dc.date.available2009-11-25T23:57:14Z-
dc.date.issued2005-07-20-
dc.identifier.citationActa Neurochir (Wien). 2005 Sep;147(9):965-72; discussion 972. Epub 2005 Jul 18.en
dc.identifier.issn0001-6268 (Print)-
dc.identifier.urihttp://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=16028111-
dc.identifier.urihttps://hdl.handle.net/10371/15547-
dc.description.abstractBACKGROUND: 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.en
dc.language.isoenen
dc.publisherSpringer Verlagen
dc.subjectAdulten
dc.subjectAgeden
dc.subjectBrain Edema/etiology/pathology/radiographyen
dc.subjectCerebral Angiography/methodsen
dc.subjectCerebral Arteries/pathology/radiographyen
dc.subjectFemaleen
dc.subjectHumansen
dc.subjectMagnetic Resonance Imaging/methodsen
dc.subjectMaleen
dc.subjectMeningeal Neoplasms/blood supply/*pathology/*radiographyen
dc.subjectMeningioma/blood supply/*pathology/*radiographyen
dc.subjectMiddle Ageden
dc.subjectPredictive Value of Testsen
dc.subjectTomography, X-Ray Computed/methodsen
dc.titleMicrocystic meningiomas: radiological characteristics of 16 casesen
dc.typeArticleen
dc.identifier.doi10.1007/s00701-005-0578-3-
Appears in Collections:
College of Medicine/School of Medicine (의과대학/대학원)Neurosurgery (신경외과학전공)Journal Papers (저널논문_신경외과학전공)
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