Liver PRETEXT Stage 3; drawing shows seven livers. Dotted lines divide each liver into four vertical sectors that are about the same size. In the first liver, cancer is shown in three sectors on the left.  In the second liver, cancer is shown in the two sectors on the left and the sector on the far right. In the third liver, cancer is shown in the sector on the far left and the two sectors on the right.  In the fourth liver, cancer is shown in three sectors on the right.  In the fifth liver, cancer is shown in the two middle sectors.  In the sixth liver, cancer is shown in the sector on the far left and the second sector from the right.  In the seventh liver, cancer is shown in the sector on the far right and the second sector from the left.