Presentation
Low back pain radiating to the right lower limb.
Patient Data
The MRI sequences demonstrate a small well-defined intradural extramedullary lesion (measuring 10 x 7 x 5 mm) at the level of the L2 vertebral body. It displays an iso-to slight high signal to the spinal cord on T1 and T2 with moderate homogeneous enhancement on postcontrast sequences.
Right subarticular disc herniation compressing the adjacent S1 nerve root.
Annotated images: the yellow arrow indicates the intradural extramedullary lesion.
Case Discussion
Small well-circumscribed intradural extramedullary lesion, probably an ependymoma (incidental finding) in a patient with disc herniation.
For differential diagnosis: please refer to the article: Intradural extramedullary spinal tumors
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