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Updated: Aug 18, 2026
Role of Diffusion MRI Tractography in Endoscopic Endonasal Skull Base Surgery
Published on: July 5, 2021
[Intraosseous meningioma of the skull: radiologic pathologic correlation]
A Henon1, M Colombat, M Rodallec
1Radiologie, Hôpital Beaujon, 100 bd du Gal Leclerc, 92118 Clichy Cedex, France.
Abstract:
Intraosseous meningiomas are rare ectopic meningiomas. The authors report the case of a hyperostotic intraosseous meningioma of the parietal bone without dural extension. The preoperative imaging findings, as well as imaging features of the surgical specimen and pathologic findings are discussed.
Insights
Intraosseous meningiomas are rare tumors that grow within the skull bone. This case study details a hyperostotic parietal bone meningioma without dural extension, discussing its imaging and pathology.
Area of Science:
- Neurosurgery
- Pathology
- Radiology
Background:
- Intraosseous meningiomas are uncommon tumors arising from ectopic arachnoid cap cells within the bone, distinct from typical meningiomas originating from the dura mater.
- These tumors represent a rare subtype of meningioma, often presenting diagnostic challenges due to their unusual location and potential for hyperostosis.
Observation:
- The case involves a hyperostotic intraosseous meningioma specifically located in the parietal bone.
- Crucially, this particular tumor demonstrated no extension into the dura mater, differentiating it from more common dural-based meningiomas.
Findings:
- Preoperative imaging revealed characteristic features of the intraosseous meningioma, aiding in surgical planning.
- Analysis of the surgical specimen and subsequent pathological examination confirmed the diagnosis and provided detailed insights into the tumor's histology.
Implications:
- Understanding the imaging and pathological features of intraosseous meningiomas is vital for accurate diagnosis and effective management.
- This case contributes to the literature on rare ectopic meningiomas, highlighting the importance of considering bone involvement in meningioma presentations.
