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Doctor insights on: Retrocerebellar Arachnoid Cyst

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Cyst (Definition)

A cyst is a structure or mass that consists of a cellular lined sac. It is typically filled with fluid but may be filled with solid material. It can be congenital, traumatic, or acquired. They may develop nearly anywhere in the body and usually require complete excision for eradication or they are likely to recur. Fluid filled sacs that are not cellular lined ...Read more


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What is incidental retrocerebellar arachnoid cyst? I had an MRI because I am having unusual headaches and visual problems.

Congenital cyst: Your arachnoid cyst has little if any impact on your symptoms and is most likely a coincidental insignificant finding. This is reassuring and points toward more of a diagnosis of either migraine or tension headaches, Therapy to break up pattern seems advisable, and maybe you would benefit from BOTOX injections. ...Read more

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I read online " small left parasagittal retrocerebellar arachnoid cyst with minimal local mass effect on the left cerebellar hemisphere" what is that and does it have an effect on behavior or brain or health?

I read online " small left parasagittal retrocerebellar arachnoid cyst with minimal local mass effect on the left cerebellar hemisphere" what is that and does it have an effect on behavior or brain or health?

Benign mass: It is a cyst made up of spinal fluid. Since it is pressing on the cerebellum it can cause problems with balance and fine coordinated movements. It should not cause behavior changes ...Read more

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Small arachnoid cyst within the right paramedian retrocerebellar region? Is this a common place to have these cyst here?

Small arachnoid cyst within the right paramedian retrocerebellar region? Is this a common place to have these cyst here?

It is common place: Posterior fossa in general is where all the action is when it comes to these types of cysts. They are generally thought to be of no clinical significance.
...Read more

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Heard the term arachnoid cyst- info please.?

Spinal fluid balloon: Arachnoid is a membrane in the nervous system which is in contact with spinal fluid. Sometimes the fluid is entrapped in folds of the arachnoid causing a pocket of fluid to form either in skull or spinal canal. At times the cyst can enlarge causing brain or spinal cord compression. Arachnoid cysts can be present at birth or develop later. ...Read more

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My granddaughter got diagnosed with an arachnoid cyst. What happens to such a baby?

More details please: The location and size of the cyst impact the treatment decisions.
Is this a primary or secondary cyst>
how old is your granddaughter and is she having symptoms? Was this cyst present at birth? Please resubmit your question with more details and also talk with the physician who made the diagnosis.
Sometimes it helps to write down your three most important concerns and ask the doctor. ...Read more

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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

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What chemicals cause symptoms of arachnoid cyst increase?

Arachnoid cyst: The mechanism of temporal Arachnoid cyst filling, is by either a selective or active transport mechanism or a secretion from the cyst-lining cells. There is no chemicals cause symtoms of arachnid cyst ...Read more

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What is the definition or description of: Arachnoid cyst?

Arachnoid cyst: Arachnoid cyst = collection of fluid within the arachnoid membrane - which covers the brain or spinal cord. ...Read more

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Can you tell me more about arachnoid cyst and can you tell me your experience?

Usually asymptomatic: Arachnoid cysts are usually asymptomatic and are found incidentally on imaging studies. However, if they are very large and are showing displacement of the brain or if a patient has bled into them, then neurosurgery may be done to decompress the cysts and decrease the pressure on the surrounding brain. ...Read more

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What is it like to have an arachnoid cyst and can you tell me your experience?

Usually asymptomatic: If and when there are any symptoms, they depend on location and size of the cyst in brain ...Read more

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I'm having recurring symptoms of an arachnoid cyst, is there anything I can do to stop this?

See a surgeon: It depends on the size, location and your symptoms - I would recommend seeing a neurosurgeon to discuss the expectations of surgery vs doing no surgery and the risks - that way you can make an informed decision, but the key advice is to discuss this with someone who actually does this surgery ...Read more

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Is an arachnoid cyst or a chiari 1 mailformation life threatening?  

Not normally: These lesion typically cause no significant neurological compromise. These are usually found incidently. By them selves are not life threatening. But if you develope any symptoms headache, numbness timgling or any neurological symptoms gret evaluated assuming a doctor ordered the scan to determine this follow up wpould be appropriate. ...Read more

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Can an arachnoid cyst cause seizures?

Can an arachnoid cyst cause seizures?

Let me explain: Small arachnoid cysts are usually symptomless and may not require treatment. If arachnoid cysts grow significantly, they may cause symptoms, such as headache, weakness and fatigue. In serious cases, symptoms may become life threatening. Serious symptoms of arachnoid cysts include seizures, developmental problems, sensory or motor impairment, and hydrocephalus. The location dictate the symptoms. ...Read more

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What can be done for an arachnoid cyst on the brain?

Need for treatment: Depends on size & location of arachnoid cysts & whether or not they cause neurological symptoms from pressure on underlying brain tissue. Neurosurgeons perform minimally invasive micro neurosurgical endoscopic procedures to remove membranes of a cyst or open a cyst so its fluid drains into the normally flowing cerebrospinal fluid. See www. Ninds. Nih. Gov/disorders/arachnoid_cysts/arachnoid_cysts. ...Read more

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Left cerebellum found small arachnoid cyst, show where it is?

Arachnoid cyst: Arachnoid cysts are now commonly found on MR studies. If the cyst is small and not causing clinical symptoms there they are rarely treated surgically. ...Read more

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What to do if I have an arachnoid cyst in my brain I need to know more about it help?

What to do if I have an arachnoid cyst in my brain I need to know more about it help?

Consult neurologist: You need to be followed by a neurologist or neurosurgeon to determine if there is a change in the size of the cyst or if it impinges on vital structures, needing intervention ...Read more

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Will removing arachnoid cyst -3cm-left temp lobe-from psych patient cause change in personality?

Why?: Why would the arachnoid cyst be removed? Arachnoid cysts usually aren't the cause of problems, they're found when doing a scan because of the problem, but are usually not the cause of the problem. Removing the cyst wouldn't be expected to benefit the psych problems or change personality. ...Read more

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Dr. Alan Jacobs
96 Doctors shared insights

Arachnoid Cyst (Definition)

Arachnoid cyst = collection of fluid within the arachnoid membrane - which covers the ...Read more