Persistent carotid-vertebrobasilar anastomoses

The persistent carotid-vertebrobasilar anastomoses are variant anatomical arterial communications between the anterior and posterior circulations due to abnormal embryological development of the vertebrobasilar system. They are named, with the exception of the proatlantal artery, using the cranial nerves with which they run:

A mnemonic to help remember these persistent carotid-vertebrobasilar anastomoses is HOT Pepper.

Anatomy: Brain
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Article information

rID: 4776
Section: Anatomy
Synonyms or Alternate Spellings:
  • Persistent Carotid-Vertebrobasilar Anastomoses
  • Persistent carotid-basilar artery anastomosis

Cases and figures

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    Case 1: persistent trigeminal artery
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    3D TOF multislab
    Case 2: persistent hypoglossal artery
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    Case 3: proatlantal intersegmental artery
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