Short answer · Medically reviewed summary · Last updated: 2026-04-06
Syringomyelia is the medical term used to describe a chronic condition characterized by the formation of a fluid-filled cyst, known as a syrinx, within the spinal cord. Synonyms and Historical Nomenclature While Syringomyelia is the universally accepted clinical term, you may encounter several variations in medical literature. Historically, it was sometimes referred to as Morvan's disease, particularly when describing the associated loss of pain and temperature sensation in the hands.
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Syringomyelia is the medical term used to describe a chronic condition characterized by the formation of a fluid-filled cyst, known as a syrinx, within the spinal cord.
While Syringomyelia is the universally accepted clinical term, you may encounter several variations in medical literature. Historically, it was sometimes referred to as Morvan's disease, particularly when describing the associated loss of pain and temperature sensation in the hands. In older texts, you might see it labeled as spinal myelopathy or hydromyelia, though these terms are technically distinct. Hydromyelia specifically refers to the dilation of the central canal of the spinal cord, whereas Syringomyelia describes a syrinx that may exist outside or alongside the central canal. Because these conditions frequently coexist, they are often grouped together in clinical practice as Syringomyelia-Hydromyelia.
In international medical coding, the condition is classified under the following identifiers:
The existence of multiple names for Syringomyelia is largely due to the evolution of neuroimaging. Before the advent of Magnetic Resonance Imaging (MRI), doctors often named the condition based on the specific clinical symptoms observed, such as sensory dissociation. As our understanding of the pathophysiology—specifically the disruption of cerebrospinal fluid (CSF) flow—has improved, medical professionals have moved toward the more precise term Syringomyelia. Today, neurosurgeons and neurologists prefer this term because it accurately reflects the presence of the syrinx, which remains the primary focus of diagnostic evaluation and surgical intervention.
Medical Disclaimer: This information is for educational purposes and should not replace 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.