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Syringomyelia

Definition

Syringomyelia is damage to the spinal cord due to the formation of a fluid-filled area within the cord.

Alternative Names

Causes

The fluid build-up seen in syringomyelia may be a result of spinal cord trauma, tumors of the spinal cord, or birth defects.

The fluid-filled area (cavity) most often begins in the neck area. It expands slowly, putting pressure on the spinal cord and slowly causing damage.

Syringomyelia may occur in certain developmental problems of the nervous system, including Chiari malformations.

Symptoms

• Numbness or decreased sensation
  • Neck, shoulders, upper arms, trunk in a cape-like distribution
  • Slowly, but progressively worsens
  • Lessened ability to sense that the skin is being touched
  • Decreased sense of pain or temperature
• Pain
• Weakness (decreased muscle strength, independent of exercise) in the arms or legs
• Gradual loss of muscle mass (wasting, atrophy)
• Muscle function loss, loss of ability to use arms or legs
• Headache

• Rashes
• Muscle contractions
• Uncoordinated movement
• Spasticity

Exams and Tests

Neurologic examination may show loss of sensation or movement caused by compression of the spinal cord.

A spinal CT with myelogram or an MRI of the spine confirms syringomyelia and determines the exact location and extent. Often, an MRI of the head will be done to look for associated conditions including hydrocephalus (water on the brain).

Treatment

The goals of treatment are to stop progression of spinal cord damage and to maximize functioning. Surgical decompression may be appropriate, if there is an identifiable mass compressing the spinal cord. Physical therapy may be needed to maximize muscular function.

Outlook (Prognosis)

Untreated, the disorder is very slowly progressive, but it eventually results in severe disability. Surgical decompression usually stops the progression of the disorder, with about 50% of people showing significant improvement in neurologic function after surgical decompression.

Possible Complications

• Postoperative infection
• Other surgical complications
• Continued or progressive loss of neurologic function
• Permanent disability

When to Contact a Medical Professional

Call your health care provider if symptoms indicating syringomyelia are present.

Prevention

There is no known prevention, other than avoiding trauma to the spinal cord. Prompt treatment reduces progression of the disorder.

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