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Chiari malformation is a condition in which brain tissue extends into your spinal canal. It occurs when part of your skull is abnormally small or misshapen, pressing on your brain and forcing it down...

A herniated disk refers to a problem with one of the rubbery cushions (disks) between the individual bones (vertebrae) that stack up to make your spine. A spinal disk is a little like a jelly donut w...

Spinal stenosis is a narrowing of the spaces within your spine, which can put pressure on the nerves that travel through the spine. Spinal stenosis occurs most often in the lower back and neck. Some ...

Mayo Clinic Health System actively partners with community organizations and agencies to create an environment that promotes the physical, emotional and spiritual well-being of those who live, work an...

A spinal tumor is a growth that develops within your spinal canal or bones of your spine. It may be cancerous or noncancerous. Tumors that affect the bones of the spine (vertebrae) are known as verte...

Cervical spondylosis is a general term for age-related wear and tear affecting the spinal disks in your neck. As the disks dehydrate and shrink, signs of osteoarthritis develop, including bony projec...

Sciatica refers to pain that radiates along the path of the sciatic nerve, which branches from your lower back through your hips and buttocks and down each leg. Typically, sciatica affects only one s...

A brain lesion is an abnormality seen on a brain imaging test, such as an MRI or CT scan. A brain lesion may involve small to large areas of your brain, and the severity of the underlying condition m...

Back pain is one of most common reason that people see a doctor or miss work. Most people have back pain at least once. For most people, back pain is a short-term annoyance. For others, back pain can ...

Traumatic brain injury occurs when an external mechanical force causes brain dysfunction and usually results from a violent blow or jolt to the head or body. An object penetrating the skull, such as a...