Extradural space
Last revised by uhsussex radiology2
on 17 Sep 2024
Citation, DOI, disclosures and article data
Citation:
Maingard J, radiology2 u, Knipe H, et al. Extradural space. Reference article, Radiopaedia.org (Accessed on 08 Dec 2024) https://doi.org/10.53347/rID-25325
rID:
25325
Article created:
20 Oct 2013,
Julian Maingard ◈
Disclosures:
At the time the article was created Julian Maingard had no recorded disclosures.
View Julian Maingard's current disclosures
Last revised:
17 Sep 2024,
uhsussex radiology2
Disclosures:
At the time the article was last revised uhsussex radiology2 had no financial relationships to ineligible companies to disclose.
View uhsussex radiology2's current disclosures
Revisions:
7 times, by
6 contributors -
see full revision history and disclosures
Systems:
Sections:
Tags:
Synonyms:
- Epidural space
- Extra-dural space
The extradural (epidural) space is a potential space between the cranial bones and the endosteal layer of the dura mater, which is otherwise adherent to the cranial bone.
Gross anatomy
The extradural space is a potential space inside the cranial vault and is not normally appreciable unless there is an underlying pathology 1.
This is in contrast to the epidural space of the spinal cord which contains epidural fat, lymphatics, blood vessels, and nerve roots 1, 2. The two spaces are not continuous.
Meningeal arteries exist within the cranial extradural space. These include branches of the middle meningeal artery 1. These vessels may be damaged in trauma and can lead to a collection of blood known as an extradural hematoma.
Related pathology
intracranial infections (intracranial epidural abscess) 3
References
- 1. Schulte E. Head and Neuroanatomy. Thieme Georg Verlag. ISBN:3131421010. Read it at Google Books - Find it at Amazon
- 2. Harold Ellis, The anatomy of the epidural space, Anaesthesia & Intensive Care Medicine, Volume 7, Issue 11, November 2006, Pages 402-404
- 3. Calfee DP, Wispelwey B. Brain Abscess, Subdural Empyema, and Intracranial Epidural Abscess. Curr Infect Dis Rep.1 (2): 166-171.
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