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MRI of intracranial meningiomas: correlations with histology and physical consistency

P Carpeggiani1, G Crisi, C Trevisan

  • 1Department of Neuroradiology, Policlinico, Modena, Italy.

Neuroradiology
|January 1, 1993
PubMed

Insights

Magnetic resonance imaging (MRI) can help identify intracranial meningiomas. Hard, fibroblastic meningiomas are common, but MRI signal intensity does not reliably predict tumor type or consistency.

Area of Science:

  • Neurosurgery
  • Radiology
  • Oncology

Background:

  • Intracranial meningiomas are common primary tumors of the central nervous system.
  • Accurate preoperative assessment of meningioma characteristics is crucial for surgical planning and patient management.
  • Histological subtypes and tumor consistency influence surgical approach and outcomes.

Purpose of the Study:

  • To correlate Magnetic Resonance Imaging (MRI) findings with the histology and intraoperative consistency of intracranial meningiomas.
  • To determine if specific MRI signal intensities can predict tumor subtype or hardness.

Main Methods:

  • Retrospective review of 43 intracranial meningiomas.
  • Correlation of MRI appearances with surgical and pathological findings.
  • Analysis of tumor signal intensity on T2-weighted images.

Main Results:

  • A significant association was found between hard tumor consistency and the fibroblastic histological subtype.
  • No statistically significant correlation was identified between MRI signal intensity and tumor histology or consistency.
  • Meningiomas appearing hyperintense on T2-weighted MRI were unlikely to be fibroblastic or hard.

Conclusions:

  • While MRI is valuable for detecting meningiomas, T2-weighted signal intensity is not a reliable predictor of fibroblastic subtype or hardness.
  • The association between hard consistency and fibroblastic meningiomas is statistically significant.
  • Further research may explore advanced MRI techniques for improved characterization.

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