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題名 | Intraspinal Synovial Cyst of Facet Joint with Vacuum: A Case Report=脊柱內含氣性滑膜囊腫:病例報告 |
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作者 | 周美君; 葉力仁; 陳坤煌; 潘慧本; Chou, Mei-chun; Yeh, Lee-ren; Chen, Clement K. H.; Pan, Huay-ban; |
期刊 | 中華放射線醫學雜誌 |
出版日期 | 20040600 |
卷期 | 29:3 2004.06[民93.06] |
頁次 | 頁157-161 |
分類號 | 416.61 |
語文 | eng |
關鍵詞 | 脊椎面關節; 滑膜囊腫; Spine facet joints; Synovial membrance cysts; |
中文摘要 | 退化性脊椎面關節炎常合併發生脊柱內滑膜囊腫,其在傳統磁振造影典型表現為:T1加權影像時的訊號強度相處或略高於脊髓液,T2加權影像時的訊號強度亦屬偏高。本篇報告一例脊柱內滑膜囊腫,它在磁振造影T1及T2加權影像的訊號強度皆低於脊髓液,造成原因為其囊腫內容物主要為氣體,這樣的影像學表現在沒有其他影像學檢查(例如電腦斷層攝影)輔助下容易被誤認為退化性骨贅或是其他代謝異常造成之晶體沈積。瞭解滑膜囊腫有內含氣體之可能性,有助於分析及鑑別磁振造影下為低訊號強度之脊柱內病灶。 |
英文摘要 | Typical synovial cyst arising from degenerative facet joint usually appears isointense to slightly hyperintense to cerebrospinal fluid on T1-weighted and hyperintense on T2-weighted conventional magnetic resonance (MR) imaging. We present a case of intraspinal synovial cyst with thecal sac compression that manifesting low signal intensity on both T1weighted and T2-weighted MR imaging due to the gas-containing nature. It may be difficult to be differentiated from crystal deposition or giant osteophyte formation if no other modality such as computed tomography is available for correlation. The entity of synovial cyst with vacuum should be included in the differential diagnoses when evaluating a patient with posterolateral epidural lesion that is hypointense at all MR pulse sequences. |
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