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. 2021 Nov 26;23(11):81. doi: 10.1007/s11926-021-01045-3

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© The Author(s) 2021

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Fig. 7 — A Sagittal short tau inversion recovery (STIR) sequence demonstrating posterior vertebral body scalloping (arrowheads) and severe thinning of the sacrum (long arrow) due to dural ectasia. There is a wider dural sac at the level of S1 compared to L4. Note the kyphoscoliosis of the spine centred at L1–2. B Axial T2-weighted MRI demonstrates longstanding scalloping of the posterior aspect of the L5 vertebral body (arrows) due to dural ectasia