Medically reviewed by Sameena Zahoor, MDMedically reviewed by Sameena Zahoor, MD The meninges of the brain and spinal cord are three layers of membranes: the dura mater, arachnoid mater, and pia mater ...

Learn about the symptoms, causes, and treatment options for Arachnoiditis. Discover how this painful nerve condition affects ...

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 ...

Arachnoid cysts are benign cerebrospinal fluid‐filled sacs that typically reside within the arachnoid membrane. Although most of these cysts remain asymptomatic, complications can arise when ...

Olfactory groove meningioma (OGM) is a rare tumor that develops in the brain’s outer layers. It grows along the nerves that connect the brain to the nose and most commonly affects a person’s sense of ...