PMC4392534_01
Lumbar MRI Case 1: L2-L3 Epidural Hematoma (Arrow) (a) Axial plane at L2-L3. (b) Sagittal plane
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F1
At surgery (hemilaminectomy), this proved to be an epidural hematoma [Figure 1]; within 2 postoperative weeks, she recovered completely.
PMC4392534_02
Lumbar MRI Case 2: S1-root neurilemoma (Arrow) (a) Axial plane at S1-level. (b) Sagittal plane
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F2
S1 nerve root with high suspicion for tumor [Figure 2]. She underwent a surgical excision of an S1-root neurilemoma and attained complete pain relief postoperatively, with return of neurological function.
PMC4392534_03
Lumbar MRI Case 3: Sacral metastasis from lung cancer. (a) Axial plane at S1-level (b) Sagittal plane
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F3
A lumbar MRI revealed a large sacral mass, impinging on the left S1 nerve root [Figure 3] and infiltrating into nearby muscle and into both the S1 and S2 neural foramina.