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(A) Axial T1-weighted image at the S2 level, showing several perineural lesions (in yellow circle with arrows) in the spinal canal at the S2 vertebral level. These lesions demonstrate low signal on T1-weighted image. (B) Axial T2-weighted image at the S2 level showing hyperintense lesions (in yellow circle with arrows). (C) Axial post-gadolinium administration at the S2 level showing unenhanced lesions (in yellow circle with arrows) after the administration of gadolinium.
