Definition of Encephalitis Encephalitis is an acute inflammation of the brain itself. Unlike meningitis, which affects the membranes surrounding the brain, encephalitis involves the brain tissue, leading to swelling and potentially damage to brain cells….
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Definition of Meningitis Meningitis is an inflammation of the meninges, the protective membranes that surround the brain and spinal cord. This inflammation is typically caused by an infection of the fluid (cerebrospinal fluid or CSF)…
Definition of Brain Tumor A brain tumor is an abnormal growth of cells within the brain or surrounding tissues and structures near the brain, such as nerves, the pituitary gland, or the pineal gland. Brain…
Definition of Spinal Stenosis Spinal stenosis refers to the narrowing of the spaces within your spine, which can put pressure on the spinal cord and the nerves that travel through it. This narrowing can occur…
Definition of Sciatica Sciatica refers to nerve pain caused by irritation or compression of the sciatic nerve, the longest and thickest nerve in the body. This pain typically originates in the lower back and travels…
Definition of Carpal Tunnel Syndrome Carpal Tunnel Syndrome is a condition characterized by pressure on the median nerve as it passes through the carpal tunnel in the wrist. This narrow tunnel is formed by the…
Definition of Vertigo Vertigo is a false sensation of movement, typically a rotational or spinning sensation. It results from a disruption in the signals sent to the brain by the vestibular system, which includes the…
What is Tinnitus? Tinnitus is a condition when a person hears a ringing sound or a different variety of sound when no corresponding external sound is present and other people cannot hear it. Nearly everyone experiences…
What is Tremor? A tremor is an involuntary, rhythmic shaking movement that affects one or more parts of your body. It most commonly affects the hands, but can also occur in the arms, legs, head,…
What is Ataxia? Ataxia is a neurological sign and a condition characterized by a lack of voluntary coordination of muscle movements. It implies a problem with the parts of the nervous system that coordinate movement,…
