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Lumbar spine MRI. (A) Sagittal T1 MRI shows an L4-5 large dorsal compressive epidural lesion, with heterogeneous intensity. (B) Sagittal T2 MRI shows the same lesion (arrowhead) which appears hypointense with severe canal stenosis and compression of the thecal sac. (C) Axial MRI with contrast (gadolinium) reveals enhancing capsule surrounding the non-enhancing mass (arrow). This was thought to be a haematoma versus haematological malignancy.
