Click on image to view larger version.
Figure 6. Development of lobar atrophy. (a) On this unenhanced CT of the liver there is an area of low attenuation at the junction of segments 2, 3 and 4. This area is wedge shaped, suggesting it is vascular in nature. A biopsy of this region confirmed metastatic adenocarcinoma. (b) During the portal venous phase of contrast enhancement this area of abnormality is no longer visible. There is a small area of low density within the periphery of this wedge shape region. The portal vein is patent. (c) 15 months later, despite several courses of chemotherapy, there is almost complete atrophy of the left lobe of the liver. There is extensive ascites present. The left portal vein was not identified, but the main portal vein remained patent.
