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Chiari malformation

If you've been diagnosed with chairi malformation, our neurosurgeons can treat the condition with decompression surgery if required

About

Chiari malformation is where brain tissue extends into the spinal canal. This happens when there is a mismatch between the size of brain tissue and the brain cavity, so the tissue is pushed downwards into the spinal canal. This can put pressure on the brainstem and spinal cord, sometimes resulting in the formation of a cyst within the spine. 

Need to know

  • Symptoms of Chiari malformation icon plus

    Many people with a Chiari malformation have no signs or symptoms so the condition often goes unnoticed. However, symptoms can occur depending on type and severity of the Chiari malformation:

    Chiari I: Usually becomes apparent in late childhood/early adulthood. Symptoms can include coughing, headaches and balance problems.If associated with a spinal cyst (syringomyelia), it can also cause poor hand coordination, difficulty walking and difficulty swallowing (syringobulbia).

    Chiari II: Always related to an open spina bifida. Symptoms can include changes in breathing, swallowing problems, quick downward eye movements and arm weakness.
     
  • Diagnosis icon plus

    As Chiari malformations have few symptoms, they are often discovered during physical examinations. They may show up on the following tests:

    • MRI scans to display brain tissue clearly
    • X-rays may reveal bone abnormalities associated with Chiari malformation
    • CT scans can help display bone abnormalities associated with Chiari malformation
  • Potential treatment options icon plus

    If the Chiairi malformation is causing you headaches and pressing on your spinal cord, your consultant may recommend medication or decompression surgery. This procedure happens under general anaesthetic. Your surgeon will make a cut at the back of your head and then remove a piece of bone removed from the base of your skull. Normally the arch of the first vertebra (C1) is also removed. The bony decompression between the occiput and the C1 vertebra allows the tough outer covering of the brain and spine (dura) to be opened, creating more space for the abnormally-located brain tissue.
Consultant in theatres

Our consultants

From complex surgery to straightforward procedures, we provide exceptional care across our network of hospitals, outpatient centres and specialist clinics.

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From complex surgery to straightforward procedures, we provide exceptional care across our network of hospitals, outpatient centres and specialist clinics.

Request an appointment

We're happy to help you make an appointment with one of our experienced consultants.

This content is intended for general information only and does not replace the need for personal advice from a qualified health professional.
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