SPECTRUM OF FUNCTIONING ISLET CELL TUMOR ON MULTISLICE COMPUTED TOMOGRAPHY:EXPERIENCE ON 70 PATIENTS

查看全文 作　　者：Hua-dan [1]Xue;Wei [1]Liu;Hao [1]Sun;Reto [2]Merges;Xuan [1]Wang;Xiao-na [1]Zhang;Yun [1]Wang;Wen-min [1]Zhao;Jiu-hong [2]Chen;Zheng-yu [1]Jin

机构地区：[1]Department of Radiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730;[2]Medical Solutions, Siemens Ltd., Beijing 100102

出　　处：《Chinese Medical Sciences Journal》索引2008年第23卷第1期,共9页

摘　　要：Objective To review experience in preoperative detection of islet cell tumors using multislice computed tomography (MSCT) and summarize various imaging features of functioning islet cell tumors on enhanced MSCT.Methods Seventy patients with clinical or pathological diagnosis of functioning pancreatic islet cell tumor between October 2003 and February 2007 were included in this retrospective study. Seventy-four enhanced MSCT scans in these patients were identified. All MSCT scans were interpreted by two experienced radiologists by consensus interpretation. Surgery and pathology reports were used to confirm the diagnosis, localization, and size of tumors.Results Totally, 73 functioning islet cell tumors including 65 benign insulinomas, 2 benign glucagonomas, 3 malignant insulinomas, and 3 malignant glucagonomas were pathologically diagnosed. Tumors in only two cases were not found by MSCT. In 67 benign lesions, 32 showed typical enhancement style, 21 showed prolonged enhancement in portal venous phase, 4 showed delayed enhancement, 4 had iso-dense enhancement with normal pancreatic parenchyma, 2 had no enhancement at all in arterial phase and portal venous phase, and 4 had inhomogeneous enhancement with necrosis or cyst-formation. Patchy or spotty calcifications were found in 3 of the 67 tumors. In 6 malignant islet cell tumors, vessel invasion (2/6) and bowel invasion (1/6) were seen. Different enhancement patterns were shown. All hepatic metastases showed hyper-enhancement during their arterial phase. ConclusionsPancreatic islet cell tumor may display a wide spectrum of presentations in MSCT. Tumors with unusual appearances often present as diagnostic challenges. Non-contrast and post-contrast multiphase scans are recommended for the localization of functioning islet cell tumors. 关键词：胰岛细胞肿瘤胰腺计算机断层扫描光谱研究

相关文献

参考文献（13）
引证文献（2）
耦合文献（17）

参考文献(13)

引证文献(2)

耦合文献(17)

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费

SPECTRUM OF FUNCTIONING ISLET CELL TUMOR ON MULTISLICE COMPUTED TOMOGRAPHY:EXPERIENCE ON 70 PATIENTS

参考文献(13)

引证文献(2)

耦合文献(17)

用户提示