Arachnoid cysts are the most common type of brain cyst. They're not tumors, but cysts filled with cerebrospinal fluid (a clear liquid that surrounds your brain and spinal cord). Most people who have ...

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 ...

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 ...

When people experience head trauma or if doctors suspect certain medical conditions, scans can be used to look at the brain and make an assessment. Arachnoid cysts (AC) are little sacs full of fluid ...