Fig. 9
Bile duct hamartomas in a 52-year-old female. a Multiple hyperechoic round nodules (arrows) at ultrasonography, displaying a “snowstorm” pattern. b Coronal magnetic resonance cholangiopancreatography shows several small hyperintense nodules, which do not communicate with the biliary tract (arrows). c Axial computed tomography on portal venous phase shows bilobar small round-shaped hypoattenuating nodules, which can be better detected with an axial magnetic resonance cholangiopancreatography sequence (d)