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Planum sphenoidale meningioma. Attachment and blood supply
Abstract:
By reviewing clinical and radiological data and surgical findings of 35 so-called "olfactory groove meningioma" cases, the authors conclude that this is not a homogenous group. According to the attachment and blood supply they differentiate two varieties, the planum sphenoidale meningioma (PM) and the olfactory meningioma (OM). It seems possible to distinguish both groups clinically and with regard to the localization of hyperostosis and pneumencephalographic and angiographic findings.
Insights
Olfactory groove meningiomas are not a single type. Researchers identified two distinct subtypes, planum sphenoidale meningioma (PM) and olfactory meningioma (OM), based on attachment and blood supply.
Area of Science:
- Neurosurgery
- Neuroradiology
- Oncology
Background:
- Olfactory groove meningiomas are traditionally considered a single entity.
- Accurate classification is crucial for surgical planning and prognosis.
Purpose of the Study:
- To re-evaluate the classification of olfactory groove meningiomas.
- To differentiate between subtypes based on anatomical and vascular characteristics.
Main Methods:
- Review of clinical, radiological, and surgical data from 35 cases.
- Analysis of tumor attachment and blood supply.
- Correlation with hyperostosis, pneumencephalography, and angiography findings.
Main Results:
- The study identified two distinct subtypes: planum sphenoidale meningioma (PM) and olfactory meningioma (OM).
- Differences were observed in tumor attachment and vascular supply.
- Clinical and radiological findings, including hyperostosis patterns, aided in distinguishing the two groups.
Conclusions:
- Olfactory groove meningiomas represent a heterogeneous group, not a single entity.
- Planum sphenoidale meningioma (PM) and olfactory meningioma (OM) are distinct subtypes.
- Clinical and radiological features can help differentiate between PM and OM.