Spinal extradural meningioma: Report of two cases.

Purely extradural spinal meningiomas are rare and often confused with metastases and schwannomas. Only a few cases have been described in the literature, and they are located mainly in the cervical and dorsal regions. We present two cases of extradural meningiomas, one well-defined nodular growth present at a cervicodorsal junction that was confused with schwannoma preoperatively and the other typical meningioma extending both intra and extradurally in the upper dorsal spine.