Liver PRETEXT Stage 2; drawing shows five livers. Dotted lines divide each liver into four vertical sectors that are about the same size. In the first liver, cancer is shown in the two sectors on the left.  In the second liver, cancer is shown in the two sectors on the right. In the third liver, cancer is shown in the far left and far right sectors. In the fourth liver, cancer is shown in the second sector from the left.  In the fifth liver, cancer is shown in the second sector from the right.