Arachnoid cysts are benign, cerebrospinal fluid-filled sacs that typically arise from developmental anomalies in the arachnoid membrane. Although often discovered incidentally, these lesions can ...

Cysts can form in all parts of the body, including the brain. Typically, most brain cysts are benign and do not require surgical removal. If surgery is necessary, the surgeon will either drain or ...

For decades, people who have suffered from normal pressure hydrocephalus have had to undergo open brain surgery to treat it.