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The Dura Mater adjacent to the Attachment of Meningiomas—Its enhanced MR imaging and histological findings Tetsuji SEKIYA 1 , Hiroshi MANABE 1 , Takashi IWABUCHI 1 , Takeo NARITA 2 1Department of Neurosurgery, Hirosaki University School of Medicine 2the Second Department of Pathology, Hirosaki University School of Medicine Keyword: Magnetic resonance imaging , Meningioma , Enhancement pp.1063-1068
Published Date 1992/10/10
DOI https://doi.org/10.11477/mf.1436900537
  • Abstract
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The dura mater adjacent to the attachment of mening-iomas was enhanced on MR imaging with intravenous Gd-DTPA infusion. It was examined histologically in four patients with intracranial globoid meningiomas. His-tological examination revealed that there was no tumor cell invasion within the dura mater enhanced on MR im-aging, except at the point of their attachment. A layer of tumor cells was occasionally observed on the surface of the dura mater, but this was limited to within 5 mm of the tumor margin.

Our electronmicroscopic observation indicated that en-hancement of the dura mater adjacent to the attachment of meningiomas was caused by increased vascular per-meability of the dural vessels and extended extravascular space.


Copyright © 1992, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1251 印刷版ISSN 0301-2603 医学書院

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