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Circle of Willis
Anne G. Osborn, MD, FACR; Edward P. Quigley, III, MD, PhD; Adriene C. Eastaway, MD, MS; Giuseppe Barisano, MD
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TERMINOLOGY

  • Synonyms

    • 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

                        • 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