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Journal of Korean Neurosurgical Society 2009;45(2): 107-111.
doi: https://doi.org/10.3340/jkns.2009.45.2.107
Multiple Extracranial Metastases of Atypical Meningiomas.
Gyu Chan Lee, Seung Won Choi, Seon Hwan Kim, Hyon Jo Kwon
Department of Neurosurgery, College of Medicine, Chungnam National University, Daejeon, Korea. swchoi@cnu.ac.kr
Meningiomas are usually benign neoplasms in which extracranial metastases occur very rarely. We report a case of multiple extracranial metastases of an atypical meningioma following a local recurrence. A 68-year-old man presented with left-side motor weakness and dysarthria for two weeks. A computed tomography (CT) scan and magnetic resonance imaging (MRI) showed an intraventricular tumor. We performed a total mass removal, and the histopathologic findings were consistent with benign meningioma. Eight months later, the meningioma recurred. We performed a reoperation and whole brain radiation therapy postoperatively. The histopathologic findings showed atypical meningioma. Six months later, CT and MRI revealed metastases to multiple vertebrae, lung, ribs and perirenal soft tissue so a decompressive laminectomy with mass removal was performed. The histopathologic findings of the spinal tumors showed atypical meningioma. The results from perirenal biopsies were consistent with metastatic meningioma. In conclusion, extracranial metastasis as well as local recurrence must be considered in atypical or anaplastic meningioma. There must be regular follow-ups. Finally, an evaluation of the chest, abdomen and bone is necessary, especially when related symptoms or signs develop.
Key Words: Extracranial metastasis; Atypical meningioma; Anaplastic meningioma
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