PMC5047713_01
Sagittal (A) and axial (B) T2W-weighted MRI of the cervical spine revealing marked hyperintense posterior columns.. Notes: The dashed line corresponds to the sectional plane of the axial view. The arrows point to the hyperintense signal of the posterior columns.. Abbreviations: T2W, T2-weighted; MRI, magnetic resonance imaging.
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However, a spinal MRI showed marked T2W-hyperintense signal alterations confined to the posterior columns of the whole cervical spinal cord without pathological contrast enhancement (Figure 1), also determined as "inverted V" or "rabbit ears" sign.
Sagittal (A) and axial (B) T2W-weighted MRI at 6-month follow-up revealing subtotal remission of the posterior columns' signal alterations.. Notes: The dashed line corresponds to the sectional plane of the axial view. The arrows point to the former hyperintense signal of the posterior columns.. Abbreviations: T2W, T2-weighted; MRI, magnetic resonance imaging.
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In accordance with the clinical improvement, the tibial nerve somatosensory evoked potentials were back to normal, and an MRI scan revealed subtotal remission of the posterior columns' signal alterations (Figure 2).