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Syringomyelia

Syringomyelia is a long-term condition that causes fluid-filled cysts, which doctors call “syrinx,” to form inside your spinal cord. If the cyst da...

What is Reflex Sympathetic Dystrophy Syndrome?

Reflex sympathetic dystrophy syndrome (RSD) is a disorder that causes lasting pain, usually in an arm or leg, and it shows up after an injury, stro...

Menieres Disease

Meniere’s disease is an inner-ear condition that can cause vertigo, a specific type of dizziness in which you feel as though you’re spinning. It al...

What is Lissencephaly?

Lissencephaly is a rare condition that causes a child’s brain to develop the wrong way during pregnancy. Some people with the condition don’t have ...

What is Labyrinthitis?

When your inner ear gets infected or inflamed, it can cause a type of balance disorder known as labyrinthitis. If you feel lightheaded, or have tro...

What is Guillain-Barre Syndrome?

You may hear your doctor mention “campylobacter.” That’s a type of bacteria associated with GBS. It can cause muscle weakness, reflex loss, and num...

Creutzfeldt-Jakob Disease

Creutzfeldt-Jakob disease (CJD) is a very rare disorder that causes the brain to break down. Doctors use these images to see changes in the brain o...

What is Charcot-Marie-Tooth Disease?

Charcot-Marie-Tooth Disease affects the nerves outside the spinal cord and brain. Genetic mutations in CMT affect the way that nerve cells “talk” w...

What are Motor Neuron Diseases?

Each kind of motor neuron disease affects different types of nerve cells or has a different cause. ALS is the most common of these diseases in adul...

Wernicke-Korsakoff Syndrome

Symptoms of Korsakoff syndrome usually begin as the signs of Wernicke encephalopathy start to go away. In many cases, the lack of vitamin B1 is cau...

Upper Limb Spasticity

Upper limb spasticity is a condition that affects the way you move your arms. Without treatment, your muscles can seem frozen in these positions. I...

Understanding Peripheral Neuropathy -- The Basics

Damage to a single peripheral nerve is called mononeuropathy. The damage to the nerve can result in numbness, tingling, unusual sensations, and pai...