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A and B : Sagittal and axial T2WI MR show an extensive epidural fat deposition with thecal compression from L2 to L4, especially in the anterior aspect of right L4 body. C : Right L4 hemi-laminectomy, L4-5 discectomy and debulking of the epidural fat, especially on the right anterior aspect of the L4 body were performed. D : The postoperative MRI reveals a greatly reduced epidural fat, distinctive visualization of the decompressed sacral sac, and L4 root.
