Presentation
Chronic upper back pain with progressive onset bilateral lower limb numbness.
Patient Data
An ovoid-shaped fat signal lesion in the left posterolateral aspect of the spinal canal at the level of T6-T8. There is right anterolateral displacement and compression of the spinal cord. It is hyperintense on T1-weighted and T2-weighted sequences. Normal signal and morphology of the spinal cord above and below the level of the lesion.
The thoracic vertebral bodies demonstrate normal signal.
Conclusion: Mid-thoracic lesion with an appearance consistent with lipoma.
Case Discussion
The patient underwent T5-T8 thoracic laminectomy and excision of the lesion.
Histology:
The sections show multiple fragments of tissue which consist predominantly of benign unremarkable adipocytes and unremarkable fibrous connective tissue. No evidence of atypia or malignancy is seen.
FINAL DIAGNOSIS: Intradural lipoma
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