Histologically benign, cerebrospinal fluid (CSF)-filled, space-occupying lesion of the central nervous system
May be intracranial (most are supratentorial), spinal, or perineuronal
Most cases are asymptomatic, and the cyst is an incidental finding.
Presenting symptoms depend on the size and location of the cyst and are often nonspecific (1),(4):
Repeat CTs or MRIs are recommended, no more than yearly, for patients being managed by clinical observation.
For incidentally discovered arachnoi...
G93.0 Cerebral cysts
Q04.6 Congenital cerebral cysts
348.0 Cerebral cysts
742.4 Other specified congenital anomalies of brain
33595009 arachnoid cyst (disorder)
19276002 congenital cer...
Most arachnoid cysts are asymptomatic and do not require treatment.
The degree of symptoms produced by an arachnoid cyst, not the cyst’s location or size, is the most important factor i...
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