Abstract
Syringomyelia is the development of a cyst, or syrinx, within the central canal of the spinal cord. In non-affected individuals, the central canal often begins to collapse by the second decade of life, though the exact ages of closure are highly variable. In patients with syringomyelia, increased pressure in the central nervous system (CNS) allows fluid to enter the normally collapsed central canal, causing dilation and formation of a syrinx.
When the fluid causes expansion of the ependymal cell-lined central canal, it is defined as hydromyelia. Hydromyelia has communication between the syrinx and the fourth ventricle. In syringomyelia, the syrinx is termed noncommunicating, as there is no connection with the fourth ventricle. Furthermore, fluid in syringomyelia dissects into the parenchyma, and the syringe is lined with glial cells
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Prince, A., Mullin, J.P., Benzel, E.C. (2016). Syringomyelia. In: van de Kelft, E. (eds) Surgery of the Spine and Spinal Cord. Springer, Cham. https://doi.org/10.1007/978-3-319-27613-7_13
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DOI: https://doi.org/10.1007/978-3-319-27613-7_13
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