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題 名 | Magnetic Resonance Imaging and Magnetic Resonance Cholangiopancreatography of Intraductal Papillary Mucinous Tumor of the Pancreas=胰臟管內乳突狀黏液性腫瘤在磁振造影及磁振膽胰管攝影之影像表現 |
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作 者 | 李致輝; 潘廣澤; 洪建福; 曾振輝; 葉大森; 劉乃仁; | 書刊名 | 中華放射線醫學雜誌 |
卷 期 | 31:6 民95.12 |
頁 次 | 頁267-274 |
分類號 | 415.549 |
關鍵詞 | 管內乳突狀黏液性腫瘤; 磁振造影; 磁振膽胰管攝影; 胰臟; Intraductal papillary mucinous tumor; Magnetic resonance imaging; Magnetic resonance cholangiopancreatography; Pancreas; |
語 文 | 英文(English) |
中文摘要 | 我們整理出胰臟管內乳突狀黏液性腫瘤 (IPMT) 在磁振造影及磁振膽胰管攝影之影像表現並由影像上的特點提出一些觀點供臨床處理作參考。 此研究包括了16 個經病理切片證實為IPMT 的病人。所有的病人都接受了磁振造影及磁振膽胰管攝影檢查,而有5位並接受了內視鏡膽胰管攝影檢查。我們整理出影像的特點並和手術及病理的結果做了對照。 所有的病人的胰管都呈現了不同程度的擴張。IPMT 約可分成三型。主胰管型IPMT 的表現為主胰管明顯擴張伴隨了彌漫性的管內乳突狀軟組織腫瘤。分枝型IPMT 的表現則是呈現一囊狀腫塊伴隨了分隔及軟組織成份,並且常位於胰臟頭部的迴鈎部。混合型則包含了前兩型的特性。 1) 磁振造影是個很好的影像工具,可以偵測、診斷及評估IPMT 及範圍。2) 磁振膽胰管攝影可偵測IPMT 並可在大多數的情況下呈現出囊狀腫塊和主胰管的交通。儘管如此,內視鏡膽胰管攝影仍是診斷細微早期分枝型IPMT 的標準檢查。3) 密集的影像追踪是很重要的,而如果腫瘤有長大及主胰管有擴張的情況,則就需要考慮手術。 |
英文摘要 | To demonstrate the features of intraductal papil-lary mucinous tumor (IPMT) of the pancreas on magnetic resonance imaging (MRI) and magnetic resonance cholangiopancreatography (MRCP) and to propose a guide for its optimal management based on the characteristic imaging findings. Sixteen patients with pathologically-proven IPMT are included in the study. All patients under-went MRI and MRCP. The imaging features were retrospectively reviewed and correlated with opera-tive and pathological findings. Follow-up imaging was evaluated as well. MRCP depicted dilatation of the pancreatic duct of varying degree in all patients. Three types of IPMT were identified. Main duct IPMT (N=2) was characterized by marked dilatation of main pancreatic duct with diffuse intraductal papillary soft tissue tumors. Branch duct IPMT (N=8) was characterized by a cystic lesion with septa and soft tissue component and usually found in the uncinate process of pancreatic head. Combined type IPMT (N=6) has characteristics of both main duct type and branch duct type tumor. Among the 16 cases, two were benign adenomas, ten were malignant and four were dysplastic. Vessel invasion was found in one patient whereas regional lymph node metastasis was found in two patients. MRI is a good imaging modality to detect, diag-nose and evaluate the extent of the advanced-stage IPMT. Most IPMTs are malignant and the patho-logical type is one of the most important prognostic factor. Once an IPMT is diagnosed, especially com-bined type tumor and those with large cystic lesions and marked dilated pancreatic duct, surgical intervention should be prompted. Small branch duct type IPMTs should be closely followed up if no intervention is performed. |
本系統中英文摘要資訊取自各篇刊載內容。