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An axial T2-weighted image at L3-4 showing (a) spinal fluid surrounding, (b) nerve roots, (c) dura, (d) epidural space, and (e) a loculated subdural hematoma causing mass effect on the nerve roots. 

An axial T2-weighted image at L3-4 showing (a) spinal fluid surrounding, (b) nerve roots, (c) dura, (d) epidural space, and (e) a loculated subdural hematoma causing mass effect on the nerve roots. 

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We report the case of a 37-year-old postpartum patient who developed a contained subacute spinal subdural hematoma causing mass effect on the cauda equina and severe spinal stenosis after undergoing an epidural blood patch for postdural puncture headache. Recovery occurred following administration of oral steroids.