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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

Parasagittal meningiomas.

Tiit Mathiesen¹

¹Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark; Department of Clinical Neuroscience, Karolinska Institute, Stockholm, Sweden.

Handbook of Clinical Neurology

|June 27, 2020

Summary

This summary is machine-generated.

Parasagittal meningiomas invading the superior sagittal sinus require careful surgical management. Addressing venous structures and eloquent cortex is crucial for minimizing patient morbidity.

Keywords:

Meningioma Parasagittal Prognosis Recurrence Surgery

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Area of Science:

Neurosurgery
Oncology

Background:

Parasagittal meningiomas involve the superior sagittal sinus, impacting venous flow and surrounding critical brain areas.
Management complexity arises from tumor extent within the sinus wall and proximity to eloquent cortical regions.

Purpose of the Study:

To highlight the critical considerations for managing parasagittal meningiomas.
To emphasize the relationship between surgical strategy, venous sinus involvement, and patient outcomes.

Main Methods:

Review of clinical management strategies for parasagittal meningiomas.
Analysis of factors influencing morbidity, including venous structure management and cortical preservation.

Main Results:

Surgical morbidity is linked to the extent of superior sagittal sinus wall resection.
Management of venous structures and protection of adjacent eloquent cortex (Rolandic, calcarine) are key determinants of outcomes.

Conclusions:

Effective clinical management of parasagittal meningiomas necessitates a thorough understanding of venous sinus involvement and eloquent cortex relationships.
Minimizing morbidity requires tailored surgical approaches addressing these specific anatomical challenges.