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Cranial and Spinal Meninges

Cranial and Spinal Meninges

The cranial and spinal meninges are complex protective structures surrounding the central nervous system (CNS), consisting of the brain and spinal cord. These meninges consist of the dura mater, the arachnoid mater, and the pia mater. They protect the CNS, provide structural support, and aid in circulating cerebrospinal fluid (CSF).
Cranial Meninges
These meningeal layers cover the cranium. The dura mater is the outermost layer of cranial meninges. It is a thick and durable membrane of dense...

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Updated: Dec 17, 2025

Role of Diffusion MRI Tractography in Endoscopic Endonasal Skull Base Surgery

Role of Diffusion MRI Tractography in Endoscopic Endonasal Skull Base Surgery

Published on: July 5, 2021

Falcotentorial meningiomas.

Cecilia L Dalle Ore¹, Stephen T Magill¹, Michael W McDermott²

¹Department of Neurological Surgery, University of California San Francisco, San Francisco, CA, United States.

Handbook of Clinical Neurology

|June 27, 2020

Summary

This summary is machine-generated.

Falcotentorial meningiomas are rare intracranial tumors. Treatment strategies for these falcotentorial meningiomas are tailored to individual patient and tumor characteristics, including size and venous sinus involvement.

Keywords:

Falcotentorial Meningioma Tentorium

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Area of Science:

Neurosurgery
Oncology
Radiology

Background:

Falcotentorial meningiomas represent a rare subset, comprising 1-2% of all intracranial meningiomas.
These tumors originate at the falx cerebri and tentorium cerebelli junction.
Their location spans from the vein of Galen to the confluence of venous sinuses.

Purpose of the Study:

To review the clinical presentation of falcotentorial meningiomas.
To detail the characteristic imaging features of these tumors.
To discuss current treatment options and their outcomes.

Main Methods:

Review of clinical case data.
Analysis of neuroimaging findings.
Evaluation of treatment modalities and patient outcomes.

Main Results:

Clinical presentation varies based on tumor size and location.
Imaging features aid in diagnosis and surgical planning.
Treatment decisions are influenced by tumor factors like size and straight sinus patency.

Conclusions:

Falcotentorial meningiomas require individualized treatment approaches.
Understanding tumor factors is crucial for successful management.
This review provides insights into the diagnosis and treatment of these uncommon tumors.