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chiari and absent a1 segment of anterior cerebral artery
A few years back i had an MRA/MRI done.....
They found that I have Chiari Malformation type 1
I had the decompression surgery in 2009 and now am having all my symptoms back.

I have since switched health insurance so I am gathering up all my original reports and noticed on my MRA report it states

"Right a1 segment of anterior cerebral artery is either absent or severly hypoplastic"

I do not under stand what this means and what if any symptoms it can cause. With my Chiari I already deal with so many wanted to know it any are linked
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620923_tn?1452919248

  Hi and welcome to the Chiari forum.,

I know having symptoms return is something we hope and pray does not happen but it is possible.

When u had ur surgery, were u checked for ALL related conditions?How have u been since...when did ur symptoms start again?

Have u had a recent or a post op MRI?

In regards to the artery, hypoplastic means under developed....and it is an artery that supplies blood to the frontal lobe of the brain, there r 2 other arteries that supply blood to this area.

I am not sure how this may affect u...but I would have a MRI done to see if u may have scar tissue that has formed or ne disks that may have  shifted.
And rule out ALL related conditions to make sure they r not what are causing ur symptoms as many if not all have similar symptoms.

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