Syringomyelia

Syringomyelia (also known as hydromyelia and syringohydromyelia) occurs when fluid collects within the spinal cord and creates a cyst. This type of cyst, referred to as a syrinx, grows over time. It typically begins in the neck, but can extend down the length of the spinal cord. Without treatment, a syrinx can damage the center of the spinal cord, causing permanent injury.

The Margaret Hackett Family Program

At UChicago Medicine, our dedicated neurosurgeons are here to help. For more information about syringomyelia and the resources we have available, please call the Margaret Hackett Family Program (MHFP) at 773-795-0622.

Symptoms of Syringomyelia

Syringomyelia does not cause any symptoms. If the widening of the spinal cord increases, symptoms may gradually develop over time. Symptoms may include:

Weakness and stiffness in extremities
Pain in shoulders, back, arms or legs
Loss of sensation in the face, shoulders or back
Difficulty walking

Causes of Syringomyelia

In most cases, syringomyelia is considered a symptom of other conditions, including those listed below.

Chiari Malformation Type 1

The most common condition associated with syringomyelia is the Chiari malformation Type I. It is believed that crowding of tissue from the cerebellum located at the opening of the base of the skull can cause spinal fluid blockage. As a result, fluid builds up within the spinal cord. When Chiari malformation is associated with syringomyelia, surgery usually is recommended to create more space at the base of the skull and upper neck.

Spina Bifida

The second most common cause of a syrinx in the spinal cord is Spina Bifida (myelodysplasia). Tension related to tethering of the bottom or the middle of the spinal cord leads to a stretch injury that can then obstruct the flow of fluid within the central canal of the spinal cord. This produces the fluid backup seen in syringomyelia. This type of syrinx is best treated with surgery to untether the spinal cord.

Spinal Cord Trauma

Trauma to the spinal cord is the third most common cause of syringomyelia. When the trauma is low level (e.g., the mass of a bulging disk creating compression of the spinal cord which reacts by forming a syrinx), treatment involves surgery to remove the compressing mass. In the case of severe spinal cord injury leading to paralysis of the legs or arms and legs, there currently is no standard treatment specifically for the syrinx.

Spinal Tumor

Other Causes

Diagnosis and Treatment of Syringomyelia

Syringomyelia may be found during diagnostic imaging for another disorder. Magnetic resonance imaging (MRI) is the most reliable way to diagnose syringomyelia.

Treatment for syringomyelia depends on the severity and progression of an individual’s symptoms. Surgery is recommended for individuals with symptomatic or progressive syringomyelia.

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