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Optic Nerve/Sheath Complex
H. Christian Davidson, MD; Daniel E. Meltzer, MD
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TERMINOLOGY

  • Abbreviations

    • Optic nerve-sheath complex (ONSC); optic nerve (CNII); ophthalmic artery (OA)
  • Definitions

    • Optic nerve, chiasm, and tract: Afferent visual CNS pathways that extend from retina to visual nuclei of midbrain
    • Optic sheath: Dural encasement of intraorbital CNII

GROSS ANATOMY

  • Optic Nerve

    • Optic Sheath

      IMAGING ANATOMY

      • Extent

        • Anatomy Relationships

          • Internal Contents

            ANATOMY IMAGING ISSUES

            • Questions

              • Imaging Recommendations

                • Imaging Approaches

                  • Imaging Pitfalls

                    CLINICAL IMPLICATIONS

                    • Nerve vs. Sheath Lesions

                      Related Anatomy
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                      Related Differential Diagnoses
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                      References
                      Tables

                      Tables

                      TERMINOLOGY

                      • Abbreviations

                        • Optic nerve-sheath complex (ONSC); optic nerve (CNII); ophthalmic artery (OA)
                      • Definitions

                        • Optic nerve, chiasm, and tract: Afferent visual CNS pathways that extend from retina to visual nuclei of midbrain
                        • Optic sheath: Dural encasement of intraorbital CNII

                      GROSS ANATOMY

                      • Optic Nerve

                        • Optic Sheath

                          IMAGING ANATOMY

                          • Extent

                            • Anatomy Relationships

                              • Internal Contents

                                ANATOMY IMAGING ISSUES

                                • Questions

                                  • Imaging Recommendations

                                    • Imaging Approaches

                                      • Imaging Pitfalls

                                        CLINICAL IMPLICATIONS

                                        • Nerve vs. Sheath Lesions