link
Bookmarks
Cranial Meninges
Anne G. Osborn, MD, FACR
To access 4,300 diagnoses written by the world's leading experts in radiology, please log in or subscribe.Log inSubscribe

TERMINOLOGY

  • Definitions

    • "Pachymeninges" (thick meninges): Dura
    • Leptomeninges (thin meninges): Arachnoid, pia
    • Extradural space (EDS)
      • Potential space between dura, skull; seen only in pathologic conditions (infection, hematoma, etc.)
    • Subdural space (SDS)
      • Potential space between inner dura, arachnoid; seen only in pathologic conditions
    • Subarachnoid space (SAS)
      • Normal cerebrospinal fluid (CSF)-filled space between arachnoid, pial-covered brain
    • Subpial space (SPS)
      • Potential space between pia, glia limitans of cortex
    • Perivascular space (PVS)
      • Pial-lined, interstitial fluid (ISF)-filled invagination along penetrating arteries
      • Key part of brain "glymphatic" system

GROSS ANATOMY

  • Overview

    IMAGING ANATOMY

    • Overview

      ANATOMY IMAGING ISSUES

      • Imaging Recommendations

        • Imaging Pitfalls

          Selected References

          1. Semyachkina-Glushkovskaya O et al: Blood⁻brain barrier, lymphatic clearance, and recovery: Ariadne's thread in labyrinths of hypotheses. Int J Mol Sci. 19(12), 2018
          Related Anatomy
          Loading...
          Related Differential Diagnoses
          Loading...
          References
          Tables

          Tables

          TERMINOLOGY

          • Definitions

            • "Pachymeninges" (thick meninges): Dura
            • Leptomeninges (thin meninges): Arachnoid, pia
            • Extradural space (EDS)
              • Potential space between dura, skull; seen only in pathologic conditions (infection, hematoma, etc.)
            • Subdural space (SDS)
              • Potential space between inner dura, arachnoid; seen only in pathologic conditions
            • Subarachnoid space (SAS)
              • Normal cerebrospinal fluid (CSF)-filled space between arachnoid, pial-covered brain
            • Subpial space (SPS)
              • Potential space between pia, glia limitans of cortex
            • Perivascular space (PVS)
              • Pial-lined, interstitial fluid (ISF)-filled invagination along penetrating arteries
              • Key part of brain "glymphatic" system

          GROSS ANATOMY

          • Overview

            IMAGING ANATOMY

            • Overview

              ANATOMY IMAGING ISSUES

              • Imaging Recommendations

                • Imaging Pitfalls

                  Selected References

                  1. Semyachkina-Glushkovskaya O et al: Blood⁻brain barrier, lymphatic clearance, and recovery: Ariadne's thread in labyrinths of hypotheses. Int J Mol Sci. 19(12), 2018