Circle of Willis Variant Anatomy

The Circle of Willis is a ring like configuration of arteries that feed the brain. It is fed by the two carotid arteries and the basilar artery, with normally 6 arteries (3 per side) extending from the Circle of Willis to supply the cerebrum of the brain.In some people a complete circle, or all 6 brain supplying arteries do not develop, and this is called variant anatomy of the Circle of Willis.

Disclaimer: The condition listed on this page is an example of findings that may be identified through Prenuvo's MRI screenings. A Prenuvo scan is designed to help identify potential abnormalities that may warrant further evaluation and is not intended to diagnose disease or replace evaluation by a qualified healthcare provider, diagnostic testing, or guideline-recommended screening.

Take a quick survey to assess your cancer risk

Open modal