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Related Experiment Videos

Primary intraosseous meningiomas

E Arana1, C Diaz, F F Latorre

  • 1Department of Radiology, Hospital Universitario La Fe, Valencia, Spain.

Acta Radiologica (Stockholm, Sweden : 1987)
|November 1, 1996
PubMed
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This study evaluated 14 intraosseous meningiomas, finding CT effective for detecting bony changes. Differentiating intraosseous meningiomas from meningioma en plaque is challenging due to overlapping features.

Area of Science:

  • Neurosurgery
  • Radiology
  • Pathology

Background:

  • Intraosseous meningiomas are rare tumors arising from ectopic meningothelial cells within bone.
  • These tumors can present with varied clinical, radiological, and histological findings.

Purpose of the Study:

  • To evaluate the clinical, radiological, and histological characteristics of intraosseous meningiomas.
  • To assess the utility of CT in diagnosing these lesions and their relationship with the dura mater.

Main Methods:

  • Retrospective review of 14 histologically confirmed intraosseous meningiomas.
  • Analysis of plain skull films and CT scans.
  • Review of pathological records.

Main Results:

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  • Nine calvarial and five spheno-orbital cases were identified.
  • Common symptoms included scalp lumps (calvarial) and exophthalmos (spheno-orbital).
  • Hyperostosis was frequent, and dural involvement varied from inflammatory changes to intradural or subdural tumor extension.

    • Conclusions:

    • CT excels at detecting bony reactions and intraosseous tumor extension.
    • Dural changes are not always specific indicators of tumor involvement.
    • Distinguishing intraosseous meningiomas from meningioma en plaque is difficult due to significant similarities.