Arachnoid cyst is a weblike membrane without blood vessles,and does noy penatrate into the small depressions. IT's between the pia mater and archnoid mater is the subarchnoid space, which contains cerebrosspinal fluid.
What do doctor's do when someone has an Arachnoid cyst (mater)?
Arachnoid cysts that do not cause significant mass effect or symptoms, regardless of their size and location do not require treatment. If there is severe mass effect on surrounding structures or if there are symptoms then surgical treatment is recommended. The following table summarizes the treatment options.
Procedure Advantages Disadvantages
Drainage by needle aspiration or burr hole drainage Simple and quick High rate of recurrence of the cyst and return of symptoms
Craniotomy with excision of the cyst wall and fenestration of the cyst into normal communication with CSF pathways Permits direct inspection of the cyst. Avoids permanent shunt in some cases. Allows visualization of vascular structures Post-operative scarring may lead to a blockage of the fenestration leading to reaccumulation. More invasive
Shunting of the cyst: Technically simplest procedure Patient becomes shunt dependent. High risk of shunt- related complication
Reply:http://arachnoidcyst.org/
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