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Re: Arachnoid Cyst
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Re: Arachnoid Cyst

Posted By CCF neuro MD MM on January 29, 1999 at 08:22:09:

In Reply to: Arachnoid Cyst posted by Kathy on January 28, 1999 at 14:00:53:






I have been suffering severe back and leg pain for a year and a half.  A recent
MRI has shown that I have an Arachnoid Cyst on S1-2.  
Basically what I need to know is what exactly is an Arachnoid Cyst?  My
neurosurgeon says he could remove it by laser but he would putting me at
risk.  
What are the possibilities of this cyst getting larger?  Can this cyst go
away on it's own?
Any information would be greatly appreciated.
Thank you



=
A cyst is a fluid filled space, the arachnoid is a thin layer of tissue
which surrounds the brain, spinal cord and nerve roots.
In the case of an arachnoid cyst the layer has formed a little sac which
is filled with spinal fluid and this little bag of fluid can put pressure
on adjacent srtuctures.
If these structures are nerve roots this causes ppain and / or weakness
in the distribution of that nerve.
These cysts can get bigger, it had to grow to get to its current size,
but one cannot predict its future growth, it is unlikely however to
spontaneously disappear.

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