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KMID : 0359819960250051101
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Journal of Korean Neurosurgical Society
1996 Volume.25 No. 5 p.1101 ~ p.1107
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A Case of Meningioma in Temporo-occipital Lobe without Dural Attachment in a 14-year-old Girl
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Abstract
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Meningiomas are thought to arise from the arachnoid cap or meningothelial cells. This frequent apposition to the dura mater probably accounts for the usual attachment of the neoplasm to this layer. We report a case of intraparenchymal meningioma
without
dural attachment in a 14-year-old girl. A survey of the literature reveals that the majority of case of meningiomas without dural attachment occur either in children or below the tentorium. and most of them located in the ventricle. the deep
sylvian
fissure. the suprasellar region. on the convexity. posterior fossa. and intraosseous location within the cranial vault. Intraparenchymal meningioma without dural attachment. however. are extremely rare. The uncommon locations of meningiomas at
sites
distant from the dura mater is believed to reflect the rare occurrence of arachnoid cap cells in the Virchow-Robin spaces along the cerebral vasculature or in the pial layers distant from the dura mater.
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