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Circle of Willis
Anne G. Osborn, MD, FACR
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Terminology

  • Synonyms

    • Circle of Willis (circulus arteriosus)
  • Definitions

    • Central arterial anastomotic ring of brain

Gross Anatomy

  • Overview

    Imaging Anatomy

    • Overview

      • Anatomy Relationships

        • Branches

          • Vascular Territory

            • Normal Variants, Anomalies

              Anatomy Imaging Issues

              • Questions

                • Imaging Recommendations

                  • Imaging Pitfalls

                    Embryology

                    • Embryologic Events

                      Related Anatomy
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                      Related Differential Diagnoses
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                      References
                      Tables

                      Tables

                      Terminology

                      • Synonyms

                        • Circle of Willis (circulus arteriosus)
                      • Definitions

                        • Central arterial anastomotic ring of brain

                      Gross Anatomy

                      • Overview

                        Imaging Anatomy

                        • Overview

                          • Anatomy Relationships

                            • Branches

                              • Vascular Territory

                                • Normal Variants, Anomalies

                                  Anatomy Imaging Issues

                                  • Questions

                                    • Imaging Recommendations

                                      • Imaging Pitfalls

                                        Embryology

                                        • Embryologic Events