How often with arachnoid cysts does it require surgery?  

Rarely. Uless enlarging and causing neurological symptoms specific to that cyst, nothing is surgically done usually.Monitoring is important.
Very rare. Usually they are just followed unless it is causing a problem like seizures.
Rarely. Arachnoid cysts are not rare as an incidental finding on MRI or ct scan. Most cause no symptoms and require no treatment. Occasionally they may cause epileptic seizures or neurological impairment; if that is the case surgery may be required.

Related Questions

I have been diagnosed with a arachnoid cyst, what can I do besides surgery to live with this?

Likely benign. Arachnoid cysts are congenital lesions and if you have made it into adulthood, it is unlikely to need any intervention . If surgery is recommended, make sure to find out why as unless there are progressive neurological deficits directly attributable to the cyst, surgery is not indicated. Read more...
Surg RARELY Needed. Arachnoid cysts are generally congenital (you are born with them) and rarely need surgery . Only when they are enlarging or putting pressure on the brain or brain stem do they require surgical intervention. Read more...

I have a chiari 1 malformation, and an arachnoid cyst, how do I know if I am a candidate for surgery?

See a neurosurgeon. A well trained neurosurgeon can evaluate you, correlate your symptoms with the MRI appearance of the chiari, and decide whether surgery would be safe and effective to relieve your symptoms. Not all chiari malformations need surgery. Read more...
Depends on symptoms. If the chiari 1 is symptomatic, then surgical treatment should be considered. The same goes for the arachnoid cyst - where exactly is it and is it causing symptoms? Both conditions can be "incidental-omas" and need no treatment. Read more...
See a neurosurgeon. Depending on the location of the arachnoid cyst and the degree of cerebellar tonsilar ectopia from your chiari, you may well be a surgical candidate. Posterior fossa arachnoid cysts are a common cause of secondary chiari malformations(if the cyst is large enough to create increased pressure, it can push the bottom of the cerebellum through the foramen magnum, causing the chiari). See neurosurgeo. Read more...

I have an arachnoid cyst and a chiari 1 malformation. I know it depends on the person but how likely is it that I will need surgery?

Will try to get info. I will try to get more information on this for you from our neurosurgeons on healthtap. Please be patient. Many are literally still in the or> thanks for your question. Read more...
Only eval will tell. The only way to know if you'll need surgery is your exam by a neurosurgeon who does chiari decompressions. He will thoroughly evaluate your clinical symptoms, physical symptoms, MRI findings and base his opinion on those findings. Most arachnoid cysts do not require surgery as they are present from the beginning of your brain development. See a neurosurgeon and good luck! Read more...
See below. Again the answer will vary depending on the patient, but here goes. If the arachnoid cyst is not growing or causing any pressure problems, it can probably just be watched. If the chiari malformation is not causing problems it too can just be watched. If the headaches, or other symptoms, get worse then consult your neurosurgeon. Good luck. Read more...

I have dizzyness and nausea with ringing in my ear and a arachnoid cyst and chiari 1 malformation will I need surgery?  

Rule out causes. You must first rule out other causes of these symptoms as the finding of an arachnoid cyst and a chiari does not neccesarily mean that these symptoms are due to them. Depending n your age, i would recommend evaluation by a pediatric or adult neurosurgeon with board certification (www.Abns.Org). They should be able to help you sort out whether surgery will be of any help. Read more...
Not necessarily. The dizziness and nausea are not really classic symptoms of a chiari malformation nor arachnoid cyst. But this opinion would really need to be given by a neurosurgeon who is also reviewing your MRI of your brain. See a local neurosurgeon for a full evaluation and surgical opinion. Read more...