Fig. 5From: Lobar and segmental liver atrophy associated with hilar cholangiocarcinoma and the impact of hilar biliary anatomical variants: a pictorial essaya–c A patient with left lobe atrophy associated with malignant hilar biliary obstruction due to metastasis of colorectal origin. The left portal vein branch is occluded. a Non-contrast-enhanced CT. The atrophied lobe shows lower attenuation than the non-atrophied lobe. b, c T1-weighted MRI. The atrophied left lobe shows lower signal intensity than the hypertrophied right lobeBack to article page