CNS tumor
CNS cysts

Author: Eman Abdelzaher, M.D., Ph.D. (see Authors page)

Revised: 23 August 2017, last major update February 2012

Copyright: (c) 2002-2017,, Inc.

PubMed Search: Syrinx [title] central nervous system

Cite this page: Abdelzaher, E. Syrinx. website. Accessed September 25th, 2018.
Definition / general
  • Fluid filled cavity within spinal cord (syringomyelia) or brain stem (syringobulbia)
  • Hydromyelia: accumulation of cerebrospinal fluid (CSF) causing simple distention of central canal of spinal cord lined by ependymal cells
  • Syringomyelia: accumulation of CSF dissecting into surrounding white matter to form a paracentral cavity, not lined by ependyma
  • Syringohydromyelia: combination of both, seen in most cases
Radiology images

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Cervical spine MRI