Intradural disc
herniation is found in only 0.3% of cases of disc herniation. The majority of
these (>95%) are found in the lumbar region, with fewer than 5% occurring in
the thoracic region.
While imaging
occasionally raises suspicion of an intradural component to a herniated disc,
the majority of cases are diagnosed intraoperatively. We describe a case
of an intradural thoracic disc herniation at T11/12
diagnosed intraoperatively.
The disc material
was indistinguishable macroscopically from malignancy and the use of frozen
section for immediate confirmation of diagnosis was essential in the management
of this rare case.
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