Postmyelography CTs showing (A) bilateral cervicothoracic CSF leaks without an associated meningeal diverticulum; B, Left thoracic meningeal diverticulum.

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Postmyelography CTs showing (A) bilateral cervicothoracic CSF leaks without an associated meningeal diverticulum; B, Left thoracic meningeal diverticulum with an associated CSF leak; and C, right thoracic meningeal diverticulum without an associated CSF leak. Postmyelography CTs showing (A) bilateral cervicothoracic CSF leaks without an associated meningeal diverticulum; B, Left thoracic meningeal diverticulum with an associated CSF leak; and C, right thoracic meningeal diverticulum without an associated CSF leak. W.I. Schievink et al. AJNR Am J Neuroradiol 2008;29:853-856 ©2008 by American Society of Neuroradiology