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Myelograms demonstrate small dorsal and ventral extradural filling defects but normal delineation of nerve roots, indicating no subarachnoid abnormality.A,

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Presentation on theme: "Myelograms demonstrate small dorsal and ventral extradural filling defects but normal delineation of nerve roots, indicating no subarachnoid abnormality.A,"— Presentation transcript:

1 Myelograms demonstrate small dorsal and ventral extradural filling defects but normal delineation of nerve roots, indicating no subarachnoid abnormality.A, Cross-table lateral position.B, Left-oblique position. Myelograms demonstrate small dorsal and ventral extradural filling defects but normal delineation of nerve roots, indicating no subarachnoid abnormality.A, Cross-table lateral position.B, Left-oblique position. M.D. Sather et al. AJNR Am J Neuroradiol 2007;28: ©2007 by American Society of Neuroradiology

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