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A, Sagittal T2WI MR image demonstrates a typical intraspinal extramedullary arachnoid cyst. A, Sagittal T2WI MR image demonstrates a typical intraspinal.

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Presentation on theme: "A, Sagittal T2WI MR image demonstrates a typical intraspinal extramedullary arachnoid cyst. A, Sagittal T2WI MR image demonstrates a typical intraspinal."— Presentation transcript:

1 A, Sagittal T2WI MR image demonstrates a typical intraspinal extramedullary arachnoid cyst.
A, Sagittal T2WI MR image demonstrates a typical intraspinal extramedullary arachnoid cyst. Superior and inferior aspects of the cyst are delineated by the arrow and arrowhead, respectively. B and C, Sagittal and axial CT myelograms show how the arachnoid cyst fills more slowly than the CSF after intrathecal contrast injection. M.A. Reardon et al. AJNR Am J Neuroradiol 2013;34: ©2013 by American Society of Neuroradiology

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