Figure 1c.

Anatomic imaging of cirrhosis in four patients. (a) Axial contrast material–enhanced CT image of a 63-year-old man with cirrhosis shows the nodular contour of the liver surface, a finding that indicates cirrhosis. (b) Axial contrast-enhanced CT image of a 53-year-old man with cirrhosis shows caudate lobe hypertrophy (red oval). Green line 1 is a vertical line drawn through the lateral border of the main portal vein, green line 2 is a vertical line drawn through the left lateral border of the caudate lobe, and green line 3 is a horizontal line midway between the hepatic vein and the main portal vein, drawn perpendicular to lines 1 and 2. Caudate lobe and right lobe widths are indicated by the yellow and blue double-headed arrows, respectively. A ratio of the caudate lobe width to the right lobe width that is more than 0.65 is considered 100% specific for cirrhosis. (c) Coronal gadolinium-enhanced T1-weighted MR image of a 60-year-old man with cirrhosis and portal hypertension shows a dilated portal vein measuring 1.51 cm in diameter (black line) and ascites, findings that are indicative of portal hypertension, an indirect sign of cirrhosis. (d) Axial contrast-enhanced CT image of a 74-year-old woman with cirrhosis and portal hypertension shows paraesophageal varices (circle), a finding that indicates portal hypertension resulting in collateralization. This finding is another indirect sign of cirrhosis.