Fig. 4
From: Complications of hepatic echinococcosis: multimodality imaging approach
A 48-year-old man with communicating rupture. MR images on T2-weighted (a) and T1-weighted gradient echo (b) sequences demonstrate endoluminal biliary content (arrows), hypointense and hyperintense on respective images, at the hilar biliary confluence. On MRCP image (c), the endoluminal obstructive biliary content leads to loss of signal intensity (arrow) from the hilar biliary confluence to the common hepatic duct, while the common bile duct is patent