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Updated: Jun 30, 2026

Role of Diffusion MRI Tractography in Endoscopic Endonasal Skull Base Surgery
09:53

Role of Diffusion MRI Tractography in Endoscopic Endonasal Skull Base Surgery

Published on: July 5, 2021

Surgery for convexity meningiomas.

Andrew P Morokoff1, Jacob Zauberman, Peter M Black

  • 1Department of Neurosurgery, Brigham & Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA. andrewmorokoff@gmail.com

Neurosurgery
|September 25, 2008
PubMed
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Convexity meningiomas can be safely resected with modern surgical techniques. Recurrence rates are low for benign tumors but significantly higher for atypical and malignant types, with borderline cases behaving more aggressively.

Area of Science:

  • Neurosurgery
  • Oncology
  • Pathology

Background:

  • Convexity meningiomas are common brain tumors.
  • Contemporary management and recurrence factors require further analysis.

Purpose of the Study:

  • Analyze surgical techniques, complication rates, and pathological factors for convexity meningiomas.
  • Evaluate recurrence patterns based on tumor grade.

Main Methods:

  • Retrospective review of 163 convexity meningioma cases (1986-2005).
  • Median follow-up of 2.3 years.
  • Analysis of surgical technique, complications, and pathology.

Main Results:

  • 22% of all meningiomas; 2.7:1 female:male ratio; median age 57.

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Last Updated: Jun 30, 2026

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  • 0% 30-day mortality; 1.7% new neurological deficits; 9.4% overall complications.
  • 5-year recurrence: benign 1.8%, atypical 27.2%, anaplastic 50%. Borderline atypical tumors showed higher recurrence risk.

    • Conclusions:

    • Image-guided surgery enables safe resection of convexity meningiomas with low mortality.
    • Benign tumors with complete excision have low recurrence; atypical/malignant tumors have higher rates.
    • Borderline atypical tumors exhibit behavior similar to atypical meningiomas.