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Cerebellopontine Angle/IAC
H. Ric Harnsberger, MD
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TERMINOLOGY

  • Abbreviations

    • Cerebellopontine angle (CPA) and internal auditory canal (IAC)
  • Definitions

    • CPA-IAC cistern: CSF space in CPA and IAC containing CNVII and CNVIII and anterior inferior cerebellar artery (AICA) loop
    • IAC fundus: Lateral CSF-filled cap of IAC cistern containing distal CNVII, superior vestibular nerve (SVN), inferior vestibular nerve (IVN), and cochlear nerve
    • Cochlear aperture: Bony opening connecting IAC fundus to cochlea

IMAGING ANATOMY

  • Internal Contents

    ANATOMY IMAGING ISSUES

    • Imaging Approaches

      • Imaging Pitfalls

        CLINICAL IMPLICATIONS

        • Function & Dysfunction

          EMBRYOLOGY

          • Embryologic Events

            Related Anatomy
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            Related Differential Diagnoses
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            References
            Tables

            Tables

            TERMINOLOGY

            • Abbreviations

              • Cerebellopontine angle (CPA) and internal auditory canal (IAC)
            • Definitions

              • CPA-IAC cistern: CSF space in CPA and IAC containing CNVII and CNVIII and anterior inferior cerebellar artery (AICA) loop
              • IAC fundus: Lateral CSF-filled cap of IAC cistern containing distal CNVII, superior vestibular nerve (SVN), inferior vestibular nerve (IVN), and cochlear nerve
              • Cochlear aperture: Bony opening connecting IAC fundus to cochlea

            IMAGING ANATOMY

            • Internal Contents

              ANATOMY IMAGING ISSUES

              • Imaging Approaches

                • Imaging Pitfalls

                  CLINICAL IMPLICATIONS

                  • Function & Dysfunction

                    EMBRYOLOGY

                    • Embryologic Events