Tarlov cysts are a condition where you develop cysts on the nerves of your spine. These pockets of fluid aren't life-threatening, but they can lead to symptoms like pain or muscle weakness. The cysts ...

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 ...