Fig. 8.

a Coronal MIP reformat shows a triple confluence (*) of right anterior and posterior hepatic ducts and left hepatic duct to form the common hepatic duct. A CBD stone is seen as a low signal filling defect in the distal CBD (arrow) with mild upstream dilatation. b Axial T2-weighted MRI of a different patient shows oedematous gallbladder wall in keeping with acute cholecystitis (short arrow) with multiple small dependent filling defects in the CBD in keeping with bile duct stones (long thin arrow)