A literature review by 17-year-old Caitlin Haigh, who lives with syringomyelia, asking whether a shortened or crowded skull (brachycephaly) could help explain why a syrinx forms.
The basic idea: when the skull is shortened or crowded, there may be less room for the brain and the cerebrospinal fluid (CSF) around it. Less space means altered pressure and disrupted fluid flow, and disrupted CSF flow is one of the biggest known drivers of syringomyelia.
Why that matters
- Blocked flow → pressure changes → fluid forced into spinal cord tissue → syrinx formation.The review explains that disrupted CSF flow is one of the biggest drivers behind syringomyelia, so anything that crowds the space the fluid moves through deserves attention.
The key connection
- Research in brachycephalic dog breeds found more skull overcrowding.
- More overcrowding came with more CSF disruption.
- Those breeds show increased rates of Chiari-like malformation and syringomyelia.
- The more overcrowding present, the worse the syrinx tended to be.
The bigger takeaway
The paper questions whether some “idiopathic” syringomyelia cases, the ones with no identified cause, may actually have overlooked structural or genetic contributors. In other words: maybe we haven’t found the real root cause yet.
Conclusion: brachycephaly may not be “just cosmetic.” Structural crowding could fundamentally change brain pressure dynamics and contribute to serious neurological conditions like syringomyelia.
A special thanks
Thank you to 17-year-old Caitlin Haigh, who is diagnosed with syringomyelia and did something people in our community have so often had to do: her own research and advocacy. She took it to the next level and presented us with this review, showing that you don’t need a professional degree to understand the possible root causes and the severity of a complex disease.
“Idiopathic” may just mean we haven’t looked closely enough at the skull yet.
What this is and isn’t. This is a review of existing literature, much of it from veterinary research in dog breeds, not a new human study. It raises a question worth investigating; it does not prove that brachycephaly causes syringomyelia in people.
Read Caitlin’s full review, including the studies she drew from.
Disclaimer
This summary is for informational and educational purposes only and is not medical advice, diagnosis, or treatment. It describes what happened in a specific study and does not predict what will happen for you. Never start, stop, or change a treatment based on a summary; bring the full publication to your care team and decide together. I AM HEARD Coalition assumes no liability for any actions taken based on this information.
More from I AM HEARD
New to the condition? Start with what syringomyelia is and how it relates to Chiari malformation in associated conditions. Young people living with syringomyelia can find community in our youth program.
Research is one part of how we help. Our core programs put resources into patients’ hands now: care packages, the grant program, and regenerative therapy access.
