What is Syringomyelia

Syringomyelia is a chronic neurological condition characterized by the development of a fluid-filled cyst, known as a syrinx, within the spinal cord.

Understanding the Condition

In Syringomyelia, the syrinx gradually expands over time, exerting pressure on the delicate nerve fibers within the spinal cord. Because the spinal cord serves as the body’s primary communication highway, this pressure can disrupt signals between the brain and the rest of the body. While primarily a disorder of the nervous system, the resulting nerve damage can have a cascading effect, potentially impacting the muscular, skeletal, and even autonomic systems, which regulate processes like digestion and circulation.

Classifications and Causes

Clinicians generally classify Syringomyelia into two main types: congenital (often associated with Chiari malformation, where brain tissue extends into the spinal canal) and post-traumatic or secondary (resulting from spinal cord injury, meningitis, or tumors). The pathophysiology involves a disruption in the normal flow of cerebrospinal fluid (CSF), the clear liquid that cushions the brain and spinal cord. When this flow is obstructed, the resulting pressure changes lead to the formation of the syrinx.

Who is Affected?

Syringomyelia is considered a rare disease, though exact prevalence data remains challenging to pinpoint due to underdiagnosis. It typically manifests in young adulthood, usually between the ages of 20 and 40, though it can present at any age. Symptoms often progress slowly, and because the condition is rare, it is frequently misdiagnosed as other neurological or musculoskeletal issues. Unlike typical nerve injuries, the hallmark sign of Syringomyelia is often a "dissociated sensory loss," where a patient loses the ability to feel pain and temperature in specific areas—like the hands or shoulders—while retaining the ability to feel touch and pressure.

Medical Disclaimer: This information is for educational purposes only and does not constitute professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.

References

• NIH Genetic and Rare Diseases Information Center (GARD)


• Orphanet: The portal for rare diseases and orphan drugs


• American Syringomyelia & Chiari Alliance Project (ASAP)