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(A, B) Preoperative lumbar CT-scan (A: sagittal image, B: axial image at the L3-L4 level) done 12 days prior to admission demonstrating a herniated disc at the level of the L3-L4 segment, with compression of the dural sac and the left L4 root. (C-F) Eight-hour postoperative magnetic resonance imaging (MRI) on T2-weighted sequence (C, E: sagittal images, E, F: axial images) demonstrating an extensive T11 to L5 spinal epidural hematoma.. The dural sac compression is maximal at the surgical site (D) but is present at the upper levels (F). (G, H) Two-month postoperative MRI on T2-weighted sequence (G: sagittal image, H: axial image) demonstrating a complete evacuation of the spinal epidural hematoma with a dural sac.