Published in Surgery Litigation and Law Weekly, October 17th, 2008
"Instead of being empty as is typical, the meningeal diverticulum in this case contained a segment of the thickened tethering filum, which entered from the thecal sac through an ostium. A search of the literature revealed no prior description of a meningeal diverticulum containing a portion of tethered filum or any other structure," wrote F. Feigenbaum and colleagues.
The researchers concluded: "Only 2 previous cases of intrasacral meningeal cyst and spinal cord...
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