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En plaque foramen magnum meningiomas: rare presentations

Sandeep Mohindra1, Amey Savardekar, Manjul Tripathi

  • 1Department of Neurosurgery, Postgraduate Institute of Medical Education and Research, Chandigarh, India. sandeepneuro@gmail.com

British Journal of Neurosurgery
|May 23, 2012
PubMed

Insights

Foramen magnum (FM) meningiomas are rare, often leading to diagnostic delays due to indolent growth and unusual presentations. This study highlights two rare radiological features in FM meningiomas, emphasizing diagnostic challenges.

Area of Science:

  • Neurosurgery
  • Oncology
  • Radiology

Background:

  • Foramen magnum (FM) meningiomas constitute a rare subset, accounting for only 1.8-3.2% of all meningiomas.
  • Their indolent nature often results in a significant delay between symptom onset and diagnosis.

Observation:

  • This study presents two cases of FM meningiomas exhibiting rare radiological features.
  • One case demonstrated intense bony hyperostosis, while the other featured a circumferentially constricting en-plaque meningioma.

Findings:

  • Unusual radiological findings can further accentuate diagnostic delays in FM meningiomas.
  • The presented cases underscore the variability in meningioma presentation at the foramen magnum.

Implications:

  • Recognizing rare radiological features is crucial for timely diagnosis of foramen magnum meningiomas.
  • Improved awareness of these presentations can aid neurosurgeons and radiologists in earlier detection and management.

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