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KMID : 1001920140550010043
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Journal of Korean Neurosurgical Society
2014 Volume.55 No. 1 p.43 ~ p.47
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Spinal Cord Ependymoma Associated with Neurofibromatosis 1 : Case Report and Review of the Literature
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Cheng Hongwei
Shan Ming
Feng Chunguo
Wang Xiaojie
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Abstract
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Patients with neurofibromatosis 1 (NF1) are predisposed to develop central nervous system tumors, due to the loss of neurofibromin, an inactivator of proto-oncogene Ras. However, to our knowledge, only three cases of ependymomas with NF1 have been reported in the literature. The authors present a case of NF1 patient with a spinal cord ependymoma. She was referred for about half a year history of increasing numbness that progressed from her fingers to her entire body above the bellybutton. Magnetic resonance imaging revealed a relative-demarcated, heterogeneously enhanced mass lesion accompanied by perifocal edema in C5-7 level, a left-sided T11 spinous process heterogeneously enhanced mass in soft tissue, intervertebral disk hernia in L2-5 level, and widespread punctum enhancing lesion in her scalp and in T11-L5 level. The patient underwent C5-7 laminectomies and total excision of the tumor under operative microscope, and intraoperative ultrasonography and physiological monitoring were used during the surgery. Histopathologically, her tumor was found to be a ependymoma without malignant features (grade II in the World Health Organization classification). Therefore, no adjuvant therapy was applied. Following the operation, the patient showed an uneventful clinical recovery with no evidence of tumor recurrence after one year of follow-up.
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KEYWORD
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Autosomal dominant disorder, Ependymoma, Intraoperative ultrasonography, Neurofibromatosis 1, Neurofibromin, Physiological monitoring
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