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Axial and sagittal MRI in neutral position are normal.
Flexion MRI reveals anterior translation of posterior dura with epidural soft tissue (red), dura is represented by a thin hypointense line (blue). T1: note the anterior dural translation in dorsal canal as well with epidural fat prominence (findings easier to appreciate on T1WI). T2: cord is displaced by the epidural soft tissue. Similar findings on a more inferior section, thin dura (blue) well seen to be displaced anteriorly.