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摘要


本文報告二例很罕見的囊狀腦膜瘤,一例發生於一名74歲女性,位於矢狀靜脈竇旁,此囊腫是在腦膜瘤之內。另一例發生於一名60歲女性,囊腫則是位於腦膜瘤旁,腦實質之外。這種囊狀腦膜瘤的電腦斷層掃描及磁振造影影像很像是星狀細胞瘤,磁振造影如能看到硬腦膜尾徵象,就可做明確診斷。

並列摘要


We report two cases of unusual cystic meningiomas in elderly patients. One was a 74-yearold woman. The mass was located in the left parasagittal region and contained an intratumoral cyst. The other was a 60-year-old woman. The mass was located in the left parietal region and contained an extraparenchymal cyst. The soft tissue areas in these two patients were small, while the cystic regions were large making the pictures mimic malignant astrocytoma. Magnetic resonance imaging depicted a ”dural tail sign” which was helpful in the preoperative diagnosis of a dura-based meningioma rather than an intra-axial glioma.

並列關鍵字

brain CT brain MR imaging cyst meningioma

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