翻译：接下来这个病例是一个71岁的老年男性临床诊断为肝外胆管上段肿瘤常规超声显示肝门部结构不清晰不能显示左右肝管是否相通；因为左侧肝内胆管扩张明显故进行了超声引导下左侧肝内胆管PTCD术同时通过引流管进行ICCEUS我们发现造影剂在左肝内胆管内充盈良好同时部分造影剂到了达右侧肝管但相对左肝管可见肝门部的右肝管管径纤细显示左右肝管通过一狭窄部位相通提示肿瘤可能已累计右肝管。

The following case is about a 71-year-old elderly male with a clinical diagnosis of tumor in the upper segment of the extrahepatic bile duct. Routine ultrasound showed unclear structures in the hepatic hilum and could not determine if the left and right hepatic ducts were connected. Due to significant dilation of the left intrahepatic bile duct, ultrasound-guided left intrahepatic bile duct PTCD (percutaneous transhepatic cholangiography and drainage) was performed. Simultaneously, ICCEUS (intraoperative contrast-enhanced ultrasound) was performed through a drainage tube. We found that the contrast agent filled the left intrahepatic bile duct well and partially reached the right hepatic duct. However, compared to the left hepatic duct, the right hepatic duct at the hepatic hilum appeared narrower, indicating a possible obstruction in the site where the left and right hepatic ducts communicate, suggesting that the tumor may have involved the right hepatic duct