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The interperiosteo-dural concept applied to the perisellar compartment: a microanatomical and electron microscopic
Patrick François1, Nadine Travers, Emmanuel Lescanne
1Laboratoire d'anatomie, Université François Rabelais de Tours, France.
Journal of Neurosurgery
|February 16, 2010
Summary
The extradural neural axis compartment (EDNAC) was anatomically verified using electron microscopy in cadavers. This study confirms the existence of the EDNAC and its dural layers in the perisellar area.
Area of Science:
- Neurosurgery
- Anatomy
- Histology
Background:
- The dura mater comprises two layers: endosteal and meningeal.
- These layers form the extradural neural axis compartment (EDNAC) in specific cranial regions.
Purpose of the Study:
- To anatomically verify the concept of the EDNAC using electron microscopy.
- To investigate the dural layers forming the EDNAC in the perisellar area.
Main Methods:
- Dissection of 13 adult cadaveric heads.
- Injection of specimens with colored latex and fixation.
- Microscopic and ultrastructural analysis, including electron microscopy, of the perisellar area's dural architecture.
Main Results:
- The EDNAC is defined by the endosteal and meningeal dural layers and contains fat and/or venous blood.
- Electron microscopy revealed distinct histological differences between the endosteal and meningeal layers.
Conclusions:
- The study provides the first microscopic demonstration of the EDNAC in the perisellar area.
- Confirms the anatomical existence and histological characteristics of the dural layers forming the EDNAC.
