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Pia and Perivascular Spaces
Anne G. Osborn, MD, FACR; Giuseppe Barisano, MD
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TERMINOLOGY

  • Abbreviations

    • Perivascular spaces (PVSs)
  • Synonyms

    • Virchow-Robin spaces (VRSs)
      • Note: In literature, PVS may sometimes refer to intramural periarterial drainage pathway, while "paravascular space" may be used for VRS
  • Definitions

    • Pial-lined, fluid-filled structures that accompany vessels entering (penetrating arteries) or leaving (draining veins) cerebral cortex

GROSS ANATOMY

  • Overview

    IMAGING ANATOMY

    • Overview

      • Anatomy Relationships

        • Internal Contents

          • Normal Variants, Anomalies

            ANATOMY IMAGING ISSUES

            • Imaging Recommendations

              • Imaging Pitfalls

                Related Anatomy
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                Related Differential Diagnoses
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                References
                Tables

                Tables

                TERMINOLOGY

                • Abbreviations

                  • Perivascular spaces (PVSs)
                • Synonyms

                  • Virchow-Robin spaces (VRSs)
                    • Note: In literature, PVS may sometimes refer to intramural periarterial drainage pathway, while "paravascular space" may be used for VRS
                • Definitions

                  • Pial-lined, fluid-filled structures that accompany vessels entering (penetrating arteries) or leaving (draining veins) cerebral cortex

                GROSS ANATOMY

                • Overview

                  IMAGING ANATOMY

                  • Overview

                    • Anatomy Relationships

                      • Internal Contents

                        • Normal Variants, Anomalies

                          ANATOMY IMAGING ISSUES

                          • Imaging Recommendations

                            • Imaging Pitfalls