Anatomy and development of the meninges: Implications for subdural collections and CSF circulation

Julie MacK, Waney Squier, James T. Eastman

Research output: Contribution to journalReview articlepeer-review

108 Scopus citations

Abstract

The dura is traditionally viewed as a supportive fibrous covering of the brain containing the dural venous sinuses but otherwise devoid of vessels and lacking any specific function. However, review of the embryology and anatomy reveals the dura to be a complex, vascularized and innervated structure, not a simple fibrous covering. The dura contains an inner vascular plexus that is larger in the infant than in the adult, and this plexus likely plays a role in CSF absorption. This role could be particularly important in the infant whose arachnoid granulations are not completely developed. Although subdural hemorrhage is frequently traumatic, there are nontraumatic conditions associated with subdural hemorrhage, and the inner dural plexus is a likely source of bleeding in these nontraumatic circumstances. This review outlines the development and age-specific vascularity of the dura and offers an alternative perspective on the role of the dura in homeostasis of the central nervous system.

Original languageEnglish (US)
Pages (from-to)200-210
Number of pages11
JournalPediatric Radiology
Volume39
Issue number3
DOIs
StatePublished - Mar 2009

All Science Journal Classification (ASJC) codes

  • Pediatrics, Perinatology, and Child Health
  • Radiology Nuclear Medicine and imaging

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