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Journal of Korean Neurosurgical Society 2011;49(1): 71-74.
doi: https://doi.org/10.3340/jkns.2011.49.1.71
Non-Dura Based Intaspinal Clear Cell Meningioma.
Jun Kyeung Ko, Byung Kwan Choi, Won Ho Cho, Chang Hwa Choi
Department of Neurosurgery, School of Medicine, Pusan National University, Busan, Korea. chwachoi@pusan.ac.kr
ABSTRACT
A 34-year-old female patient was presented with leg and hip pain for 6 months as well as voiding difficulty for 1 year. Magnetic resonance imaging revealed a well-demarcated mass lesion at L2-3. The mass was hypo-intense on T1- and T2-weighted images with homogeneous gadolinium enhancement. Surgery was performed with the presumptive diagnosis of intradural extramedullary meningioma. Complete tumor removal was possible due to lack of dural adhesion of the tumor. Histologic diagnosis was clear cell meningioma, a rare and newly included World Health Organization classification of meningioma usually affecting younger patients. During postoperative 2 years, the patient has shown no evidence of recurrence. We report a rare case of cauda equina clear cell meningioma without any dural attachment.
Key Words: Clear cell meningioma; Spinal meningioma; World Health Organization classification; Younger patients; Cauda equina
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