Thank you for posting your query.
in the brain can be present since birth in most cases, but it comes to light only when MRI
or CT of the brain is done.
Arachnoid cyst contains fluid (cerebrospinal fluid
) and it is not a tumor
Arachnoid cyst most commonly causes headache or fits
. For fits, anti-epileptic medications are required.
In most cases, surgery is not required. Surgery is only required if the arachnoid cyst starts pressing on the normal brain tissues.
So, I agree with your doctor's approach. Repeat MRI would show whether the cyst in enlarging or whether it is pressing on the adjacent brain tissue.
So, at present no need to worry and child need not restrict any activity.
I hope it helps.
Dr Sudhir Kumar MD DM (Neurology)
Senior consultant Neurologist