论文部分内容阅读
胆管癌是指发生在各级肝胆管系统的癌肿。占肝、胆系统肿瘤的15%～25%。胆管癌主要是腺癌,约占胆管癌的95%。此外还有鳞状细胞癌,粘液表皮样癌,平滑肌肉瘤型癌,横纹肌肉瘤型癌,囊腺癌以及颗粒细胞癌。在影像诊断中,尽管不能具体区分这些病理形态各异的癌肿。但在确定诊断及判断癌肿向管腔外侵犯程度等方面还是有其重要意义的。按解剖部位划分,胆管癌可分为肝内和肝外两种,也可按各级胆管分成周围胆管癌、肝总管癌、肝门外胆管癌及胆总管癌。CT对肝内和肝门外肿瘤显示率较高,可分别达到78%和79%。对肝总管和胆总管的显示率仅为29%。而超声对
Cholangiocarcinoma is cancer that occurs at all levels of the hepatobiliary system. It accounts for 15% to 25% of liver and biliary tumors. Cholangiocarcinoma is mainly adenocarcinoma, accounting for about 95% of cholangiocarcinoma. There are also squamous cell carcinoma, mucoepidermoid carcinoma, leiomyosarcoma type carcinoma, rhabdomyosarcoma type carcinoma, cystadenocarcinoma, and granular cell carcinoma. In imaging diagnosis, although these pathologically different cancers cannot be distinguished specifically. However, it still has important significance in determining the diagnosis and judging the extent of cancer invasion to extraluminal. Divided according to anatomy, cholangiocarcinoma can be divided into two kinds of intrahepatic and extrahepatic, can also be divided into bile ducts around the level into the surrounding bile duct cancer, hepatic duct cancer, extrahepatic bile duct cancer and common bile duct cancer. CT showed a high rate of intrahepatic and extrahepatic tumours, reaching 78% and 79%, respectively. The display rate of the common and common bile ducts was only 29%. Ultrasound