An infection of the membranes (meninges) surrounding the brain and spinal cord. Meningitis can be caused by a bacterial, fungal or viral infection.
A sudden disabling attack or loss of consciousness caused by an interruption in the flow of blood to the brain, especially through thrombosis.
Surgical repair or unblocking of a blood vessel, especially a coronary artery.
A condition that can affect the brain and spinal cord, causing a wide range of potential symptoms, including problems with vision, arm or leg movement, sensation or balance.