n 3 12 Rumancik WM Megibow AJ Bosniak
一、导言 n 尸检中,胰腺转移瘤占胰腺恶性肿瘤的3%~ 12% Rumancik WM, Megibow AJ, Bosniak MA. Metastatic disease to the pancreas: evaluation by computed tomography. JCAT 1984; 8: 829– 34. Merkle EM, Boaz T, Kolokythas O, et al. Metastases to the pancreas. Br J Radiol 1998; 71: 1208 -1214 n 临床中,胰腺转移瘤的发生率仅为 2%~ 5%。 Hirota T, Tomida 1, Iwasa M, Takahashi K, Kaneda M, Tamaki H. Solitary pancreatic metastasis occurring eight years after nephrectomy for renal cell carcinoma. mt i Pancreato! 1996; l 9: l 45 -153 n 胰腺转移瘤与原发肿瘤检出的时间间隔大多数在 1~3年之间。先发现转移后发现原发瘤者比较少见。
n 1989年一项研究表明:非螺旋CT胰腺转移的真 阳性率月53%。 Muranaka T, Teshima K, Honda H, Nanjo T, et al. Computed tomography and histologic appearance of pancreatic metastases from distant sources. Acta Radiol 1989; 30: 615 -619 n MSCT应用后敏感性会有所提高,现在暂时未有 该方面的报道。
n 单发型(50 -73%):单发是多为圆形、椭圆形, 边缘清晰的病变。 n 多发孤立型(5 -10%) n 弥漫型(15 -44%) 。 Muranaka T, Teshima K, Honda H. Computed tomography and histologic appearance of pancreatic metastases from distant sources. Acta Radiol 1989; 30: 615– 9.
7病例峰值在动脉期,门脉期及延迟期下降。 Chan S. Evelyne M. Revathy B. Metastases to the Pancreas from Renal Cell Carcinoma: Findings on. ThreeıPhase Contrast-Enhanced Helical CT. AJR 1999: 172: 1555 -1559
5病例峰值在动脉期,门脉期及延迟期下降。 Chan S. Evelyne M. Revathy B. Metastases to the Pancreas from Renal Cell Carcinoma: Findings on. ThreeıPhase Contrast-Enhanced Helical CT. AJR 1999: 172: 1555 -1559
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