The Specific Sagittal Magnetic Resonance Imaging of Intradural Extra-Arachnoid Lumbar Disc Herniation

<table>Schema for intradural extra-arachnoid lumbar disc herniation. An intradural extra-arachnoid lumbar disc herniation existed between the dura and arachnoid. The division of dura and arachnoid appeared as “Y” (shaded area: disc herniation; solid line: dura; dotted line: arachnoid; black arrow: “Y sign”).</table>

Case Reports in Medicine

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Figure 4

Figure 4: The Specific Sagittal Magnetic Resonance Imaging of Intradural Extra-Arachnoid Lumbar Disc Herniation 