In the presence of hemorrhage in the area of the arachnoid cyst and in case of its rupture, complete excision of the cyst is indicated.
However, this method of treatment is highly traumatic and requireslengthy recovery period. Therefore, in the absence of complications, preference is given to endoscopic intervention with the so-called. cyst fenestration. The operation is performed through a burr hole and consists in aspiration of the contents of the cyst, followed by the creation of holes connecting the cyst cavity with the ventricle of the brain and / or subarachnoid space.