4 doctors weighed in:
Can an arachnoid cyst or a chiari 1 malformation grow? 
4 doctors weighed in

Dr. K.C. Brewington
Neurosurgery
2 doctors agree
In brief: Sometimes
Aarachnoid cysts can show enlargement with age.
Chiari malformations can worsen via increased cord compression or by hydrocephalus/syringomyelia.

In brief: Sometimes
Aarachnoid cysts can show enlargement with age.
Chiari malformations can worsen via increased cord compression or by hydrocephalus/syringomyelia.
Dr. K.C. Brewington
Dr. K.C. Brewington
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Dr. Andrew Kaufman
Neurosurgery
In brief: Yes
Chiari 1 is not likely to grow, though symptoms can occasionally become worse.
Arachnoid cyst is an entirely different condition and they can grow.

In brief: Yes
Chiari 1 is not likely to grow, though symptoms can occasionally become worse.
Arachnoid cyst is an entirely different condition and they can grow.
Dr. Andrew Kaufman
Dr. Andrew Kaufman
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In brief: Yes
Cyst can grow. Acm 1 can get worse compressing nervous tissue.

In brief: Yes
Cyst can grow. Acm 1 can get worse compressing nervous tissue.
Dr. Nalinaksha Joshi
Dr. Nalinaksha Joshi
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