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題 名 | Malignant Paraganglioma of Urinary Bladder: A Case Report=膀胱惡性副神經節瘤:病例報告 |
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作 者 | 韋朝榮; 陳家媛; 王家槐; 潘競成; 刁翠美; 周宜宏; 張政彥; | 書刊名 | 中華放射線醫學雜誌 |
卷 期 | 26:5 2001.10[民90.10] |
頁 次 | 頁233-236 |
分類號 | 415.837 |
關鍵詞 | 電腦斷層; 磁振造影; 膀胱腫瘤; 惡性膀胱副神經節瘤; CT; MR; Urinary bladder tumor; Malignant urinary bladder paraganglioma; |
語 文 | 英文(English) |
中文摘要 | 發生在膀胱的惡性副神經節瘤為一罕見的腫瘤,臨床上診斷這種腫瘤需要依靠血液及尿液中,兒茶酚胺的濃度上昇指數來判斷。對於副神經節瘤的惡性變化之判定,在於腫瘤是否造成周圍組織的侵犯以及遠端轉移。因此影像學的檢查在偵測腫瘤位置,腫瘤侵犯程度以及術前之評估上扮演了重要的角色。在此我們報告一例發生在膀胱的惡性副神經節瘤在電腦斷層及磁振造影之影像。這個腫瘤在磁振造影的T1及T2影像上呈現高訊號,並在施打對比劑後有顯影的情形。相較於電腦斷層攝影,磁振造影影像可藉由顯示腫瘤與周圍組織的對比,以及多軸切面影像呈現,將腫瘤侵犯膀胱的狀況更清楚表現出來。 |
英文摘要 | Malignant paraganglioma of the urinary bladder is a rare tumor. Clinical diagnosis of this tumor relies on high index of suspicion and high levels of blood and urine catecholamines. The malignancy of the paraganglioma is established upon the presence of local aggressive behavior or distant metastasis. Imaging studies play an important role in detecting tumor foci, in determining the extent of the tumor invasion as well as in pre-surgical evaluation. We have presented the CT and MR imaging features of a case of malignant paraganglioma of the urinary bladder. The tumor demonstrated high signal intensity on both T1-weighted images and T2-weighted images and being enhanced by MRI contrast medium. MR imaging is superior to CT in delineating the extent of the tumor invasion into the bladder wall because of its better tissue contrast and multiplanar imaging capability. |
本系統中英文摘要資訊取自各篇刊載內容。