Fig. 3
From: Complications of hepatic echinococcosis: multimodality imaging approach
A 48-year-old man with hydatid liver cyst complicated with communicating rupture. a, b US images show a focal anechoic liver lesion with internal septa and hyperechoic peripheral rim, with some posterior shadows, diffuse biliary dilatation and endoluminal hyperechoic foci (arrowhead) into the common bile duct with no posterior acoustic shadows. Axial CT scan in the portal venous phase (c) and MR image on T2-weighted sequence (d) confirm the presence of a liver cyst and diffuse biliary dilatation, with material into the biliary tree (arrow). These features are consistent with progressive migration of the hydatid sand and membranes from the hilar confluence to the common bile duct