5Ferrante L, Mastronardi L, Celli P, et al. Intramedullary spinal cord ependymomas: a study of 45 cases with long-term follow-up. Acta Neurochir, 1992, 119:74
6Hoshimaru M, Koyama T, Hashimoto N, et al. Results of microsurgical treatment for intramedullary spinal cord ependymomas: analysis of 36 cases. Neurosurgery, 1999, 44:264
7Fine MJ, Kricheff II, Freed D, et al. Spinal cord ependymomas: MR imaging features. Radiology, 1995, 197:655
8Epstein FJ, Farmer JP, Freed D. Adult intramedullary spinal cord ependymomas: the result of surgery in 38 patients. J Neuresurg,1993,79:204
9Kahan H, Sklar EML, Post MJD, et al. MR characteristics of histopathologic subtypes of spinal ependymoma. AJNR, 1996, 17:143
10Wippold FJ II, Smimiotopoulos JG, Moran CJ, et al. MR iraaging of myxopapillary ependymoma: findings and value to determine extent of tumor and its relations to intraspinal structures. AJR, 1995, 165:1263
