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What is a chiari malformation?
A Chiari malformation is a rare condition in which part of your brain is pushed down into your spine. The condition can be serious, causing extra fluid to build up around your brain or a syrinx (a fluid-filled sac) to grow in your spine.
Normally, a lower part of your brain (called your cerebellum) sits where your head rounds back in and connects to your neck. If you have a Chiari malformation, this area of your skull may be too small or shaped incorrectly. This puts pressure on your cerebellum and forces it down toward the nerves of your spinal column.
Types of chiari malformation
People whose skulls are misshapen at birth have Chiari malformation type II. Other people may develop Chiari malformation type I as they grow, sometimes not showing symptoms until they are young adults. Injuries may also cause a Chiari malformation.
Symptoms of chiari malformation
Some people with Chiari malformation have no symptoms. Others can experience a wide range of problems, including:
- Neck pain
- Back pain
- Trouble speaking or swallowing
- Sleep apnea
- Trouble moving, walking or balancing
- Poor reflexes
Diagnosis and testing for a chiari malformation
Doctors can diagnose a Chiari malformation with magnetic resonance imaging (MRI) or computed tomography scans (CT scans). These tests don't take long and don't hurt.
Once your doctor diagnoses a Chiari malformation, you can work together to decide what treatment is right for you. If you have no symptoms, you may not have any treatments, but will have to keep an eye on your health. If you have minor symptoms, you may use medicines to control them, such as pain relievers or sleep apnea treatments. For more severe symptoms, your doctor may suggest surgery to remove part of your skull and relieve pressure on your brain. If you have a syrinx, it may also need to be removed through surgery.
Neurology Medical Management
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