Intracranial arteries (variants)

Intracranial arterial variants, of which there are many, are collectively common. Their clinical significance may be variable but knowledge and recognition of these variants is fundamental, especially if surgical or endovascular treatments (e.g. for acute stroke, aneurysms or other vascular pathologies) are being considered.

Anatomical variations

Anatomical variations in intracranial arterial anatomy include:

Internal carotid artery
Vertebral and basilar arteries
Anterior cerebral artery
Middle cerebral artery
Posterior cerebral artery
Persistent carotid-vertebrobasilar artery anastomoses 

See: article on persistent carotid-vertebrobasilar anastomoses


Neuroanatomy
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Article Information

rID: 1517
Section: Anatomy
Synonyms or Alternate Spellings:
  • Variant intracranial arterial anatomy

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Cases and Figures

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    Case 1: ACA fenestration
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    Case 2: persistent trigeminal artery
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    Case 3: accessory MCA
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