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Arachnoid Cyst
Developmental cysts of the brain, or arachnoid cysts, cause
symptoms based upon the location and size of the cyst. Weakness,
decreased cognitive performance, spontaneous hemorrhage, and
seizures, are common presentations for individuals with intracranial
arachnoid cysts. Most common locations include the temporal
fossa, the posterior fossa, and the suprasellar region. Treatment
has typically involved either the placement of a permanent
drainage system (cystoperitoneal shunt) or an open surgical
procedure to fenestrate the walls of the cyst. Cyst fenestration
is typically favored due to the high success rate of this
procedure. However, shunt placement is appealing due to the
simplicity of the operation. Endoscopic cyst fenestration
is a technique that couples the minimally invasive benefits
of shunting with the advantage of open fenestration by avoiding
shunt implantation.
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