What're the symptoms of arachnoid cyst?
Most arachnoid cysts that become symptomatic do so in early childhood. Most arachnoid cysts cause no symptoms. If found incidentally, they may be followed with occasional re-scanning and repeated neurological examination. Those
causing raised intracranial pressure, particularly by CSF obstruction, warrant surgery. Surgery creates drainage for the cyst, sometimes with a shunt, relieving the obstruction or pressure on other structures.
Most cases begin during infancy, however onset may be delayed until adolescence. Symptoms of an arachnoid cyst are related to the cyst size and location. Small cysts are usually asymptomatic and are discovered only incidentally. Large cysts may cause cranial deformation or macrocephaly (enlargement of the head), producing such symptoms as headaches, seizures, hydrocephalus (excessive accumulation of cerebrospinal fluid), increased intracranial pressure, developmental delay, and behavioral changes. Other symptoms may include hemiparesis (weakness or paralysis on one side of the body) and ataxia (lack of muscle control). |
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