What it is
It can block the flow of fluid around the brain and spinal cord, and sometimes a fluid-filled cavity forms in the spinal cord (syringomyelia).
If there are no symptoms, no treatment is usually needed. Surgery to make more space at the back of the skull may be offered if symptoms are significant.
Common signs
- Headaches at the back of the head, often brought on by coughing or straining
- Neck pain
- Dizziness and balance problems
- Numbness or tingling in the hands
- Difficulty swallowing
How it is usually diagnosed
- MRI scan of the brain and spine
Records worth keeping
Keeping these together makes each appointment easier, especially when you see a new doctor:
- MRI reports, including measurements
- Neurosurgery letters
- Operation notes, if any
Questions to ask your doctor
- Are my symptoms caused by the Chiari malformation?
- Is there a syrinx in the spinal cord?
- Would surgery help, and what are the risks?
When to get help right away
Call 112 or go to the nearest emergency department if you have:
- Sudden severe headache, new weakness, difficulty breathing or swallowing: call 112
This page is general information. It is not a diagnosis and does not replace a doctor who knows your history. Medfold keeps your records organised; it does not interpret them.