<s>[INST] what does this mean? Liver: Hepatic size and contour are normal. Focal biliary ductal dilatation is again demonstrated involving the posterior inferior segment of the right hepatic lobe. The appearance is not changed from comparison exam. No focal hepatic lesion. The portal vein is normally opacified. [/INST] This report means that the scan taken has almost the same result as your previous scan. Your bile duct in one part of your liver is dilated. No focal hepatic lesion means you do not have any new masses or growths or change in liver architecture in new scan. Thank you. </s>