Intradural disc fragment
Citation, DOI and case data
Back pain and lower limb weakness
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There is an intradural extramedually lesion at the level of T12. This is low signal on T1, Low signal on T2 and demonstrates no enhancement post-contrast.
Appearances are in keeping with an intradural sequestered disc fragment.
This was confirmed at surgery.
Intradural disc herniations are rare and can be difficult to differentiate from other intradural extramedullary lesions. The key finding is that lesion should have a similar appearance to disc on all sequences.
In this case, despite being reported as an intradural disc fragment, at surgery the dura was not opened and no disc fragment was identified. A repeat scan showed the disc fragment unchanged and at repeat operation the dura was opened and a disc fragment was removed.
- Kobayashi K, Imagama S, Matsubara Y, et-al. Intradural disc herniation: radiographic findings and surgical results with a literature review. (2014) Clinical neurology and neurosurgery. 125: 47-51.