Abstract
Meningioma is one of the most common tumors of the spinal canal. Spinal meningiomas are usually found in the thoracic spine and intradural extramedullary space. Intraspinal clear cell meningiomas are a rare histological variant. Fewer than 20 intraspinal cases have been reported in the literature and only two cases have been reported in the Korean literature, but there is no report available in the Korean orthopedic literature. We report here on a case of an intraspinal clear cell meningioma that was found in the thoracic region and it was completely resected. The nonspecific MR imaging characteristics make the diagnosis of this tumor difficult. Histological examination must be used to differentiate clear cell meningiomas from other tumors. Clear cell meningioma represents an aggressive variant of meningiomas, and surgical reatment and adjuvant radiotherapy are though to be essential. Further more, long term follow-up observation will be needed for detecting recurrence of clear cell meningioma.
References
1. Cho CB, Kim JK, Cho KS, Kim DS. Clear cell meningioma of cauda equina without dural attachment. J Korean Neurosurg Soc. 2003. 34:584–585.
2. Dhall SS, Tumialán LM, Brat DJ, Barrow DL. Spinal intradural clear cell meningioma following resection of a suprasellar clear cell meningioma. Case report and recommendations for management. J Neurosurg. 2005. 103:559–563.
3. Epstein NE, Drexler S, Schneider J. Clear cell meningioma of the cauda equina in an adult: case report and literature review. J Spinal Disord Tech. 2005. 18:539–543.
4. Jallo GI, Kothbauer KF, Silvera VM, Epstein FJ. Intraspinal clear cell meningioma: diagnosis and management: report of two cases. Neurosurgery. 2001. 48:218–221.
5. Kim MS, Park SH, Park YM. Thoracic intramedullary clear cell meningioma. J Korean Neurosurg Soc. 2006. 39:389–392.
6. Liu PI, Liu GC, Tsai KB, Lin CL, Hsu JS. Intraspinal clear-cell meningioma: case report and review of literature. Surg Neurol. 2005. 63:285–288.
8. Park SH, Hwang SK, Park YM. Intramedullary clear cell meningioma. Acta Neurochir (Wien). 2006. 148:463–466.
9. Salvati M, Artico M, Lunardi P, Gagliardi FM. Intramedullary meningingioma: case report and review of the literature. Surg Neurol. 1992. 37:42–45.