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Extradural spinal meningioma: case report
Authors:Dagain A  Dulou R  Lahutte M  Dutertre G  Pouit B  Delmas J-M  Camparo P  Pernot P
Affiliation:aService de neurochirurgie, HIA Val-de-Grâce, 74, boulevard Port-Royal, 75005 Paris, France;bService de radiologie, HIA Val-de-Grâce, 74, boulevard Port-Royal, 75005 Paris, France;cService d’anathomopathologie, HIA Val-de-Grâce, 74, boulevard Port-Royal, 75005 Paris, France
Abstract:

Objectives

We report a case of purely extradural spinal meningioma and discuss the potential pitfalls in differential diagnosis.

Background

Spinal meningiomas account for 20–30% of all spinal neoplasms. Epidural meningiomas are infrequent intraspinal tumors that can be easily confused with malignant neoplasms or spinal schwannomas.

Case

A 62-year-old man with a previous history of malignant disease presented with back pain and weakness of the lower limbs. Magnetic resonance imaging revealed a well-enhanced T4 intraspinal lesion. The intraoperative histological examination showed a meningioma (confirmed by postoperative examination). Opening the dura mater confirmed the purely epidural location of the lesion. The postoperative course was uneventful with no recurrence 12 months after surgery.

Conclusion

Purely extradural spinal meningiomas can mimic metastatic tumors or schwannomas. Intraoperative histology is mandatory for optimal surgical decision making.
Keywords:Spinal extradural meningioma   Spinal neoplasms   Spinal surgery
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