Welcome to NeuroTalk:
There aren't any neurologists here that I know of, who could
advise you in detail. This is mostly a patient centered support group.
I do know that the circle of Willis is a blood vessel that occurs at the base of the brain. Sometimes it is involved with strokes.
This wiki article has pictures and explains:
http://en.wikipedia.org/wiki/Circle_of_Willis
Anything that would compress this arterial system, could therefore be problematic.
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All truths are easy to understand once they are discovered; the point is to discover them.-- Galileo Galilei
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Weezie looking at petunias 8.25.2017
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