August 19, 2026
Syringomyelia is a condition in which a fluid-filled cyst, called a syrinx, forms within the spinal cord itself. This cyst can gradually expand over time, potentially damaging the delicate nerve tissue of the spinal cord and leading to a range of neurological symptoms.
While syringomyelia is a relatively uncommon condition, understanding how it develops, what symptoms it can cause, and how it is treated can help patients and families navigate a diagnosis that often comes with significant uncertainty and concern.
Syringomyelia most commonly develops in association with a Chiari malformation, a condition in which part of the cerebellum extends into the spinal canal, disrupting the normal flow of cerebrospinal fluid around the spinal cord. This disruption can cause fluid to accumulate within the spinal cord, gradually forming a syrinx. Other causes include spinal cord injury, spinal tumors, tethered cord syndrome, and inflammation or infection affecting the spinal cord, such as from meningitis.
In some cases, no clear underlying cause can be identified, a situation often referred to as idiopathic syringomyelia.
As a syrinx grows, it exerts pressure on the surrounding spinal cord tissue and can damage the nerve fibers that carry sensory and motor signals between the brain and body. Because the spinal cord is organized in a specific way, with different tracts of nerve fibers carrying different types of information, the location and extent of the syrinx often determines which specific symptoms a patient experiences.
A syrinx in the cervical spinal cord, for example, may affect the arms and hands before causing symptoms elsewhere in the body.
Symptoms of syringomyelia often develop gradually and can be subtle in the early stages, which sometimes leads to a delayed diagnosis. Common symptoms include weakness and muscle wasting, particularly in the hands and arms, loss of sensation to pain and temperature while other types of sensation like touch remain intact, a pattern sometimes called a dissociated sensory loss, as well as chronic pain, stiffness, and in some cases changes in bowel or bladder function.
Because these symptoms can overlap with many other neurological conditions, imaging is essential to establish an accurate diagnosis.
An MRI of the spine is the primary tool used to diagnose syringomyelia, as it allows the syrinx to be directly visualized along with any underlying cause, such as a Chiari malformation or spinal cord tumor. Once a syrinx is identified, additional imaging of the brain is often performed to look for associated Chiari malformation, and further workup may be needed to rule out other potential causes.
Establishing the underlying cause of the syrinx is a critical part of the diagnostic process, since treatment approaches differ significantly depending on what is driving the fluid accumulation.
Treatment for syringomyelia depends heavily on the underlying cause and the severity of symptoms. When a syrinx is associated with a Chiari malformation, surgery to decompress the area at the base of the skull, called a posterior fossa decompression, can restore normal cerebrospinal fluid flow and often leads to gradual shrinkage of the syrinx over time. When syringomyelia results from a spinal cord tumor or tethered cord, addressing that underlying condition directly is typically the primary treatment approach.
In cases where the syrinx is small, stable, and not causing significant symptoms, careful monitoring with periodic imaging may be recommended rather than immediate surgical intervention.
Patients diagnosed with syringomyelia, particularly those managed with monitoring rather than immediate surgery, often benefit from regular follow-up imaging to track whether the syrinx is stable, growing, or shrinking over time. Physical therapy can help patients maintain strength and function in affected muscle groups, while pain management strategies may be needed for patients experiencing chronic discomfort related to the condition.
Because syringomyelia can be a source of significant anxiety given its unpredictable course in some patients, maintaining open communication with a neurosurgical team about symptoms, imaging findings, and treatment options is an important part of managing the condition over the long term.
A syringomyelia diagnosis often raises more questions than answers, and we’re here to help sort through them. Call (866) 467-1770 to discuss your symptoms, or Request a Consultation Online to schedule an evaluation.