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  • syringomyelia
  • Syringomyelia, either above or below the compressive arachnoid band, may also be present. (thejns.org)
  • 3 , 13 , 18 , 21 It is one of several causes of syringomyelia associated with the blockage of CSF flow, along with arachnoid cyst 11 , 14 and septum formation. (thejns.org)
  • arise
  • 5) Normally occurring arachnoid villi and draining veins that penetrate the skull base have also been identified as possible sites from which a skull base defect could arise. (thefreedictionary.com)