Clinical course of sub-centimeter-sized nodules detected during surveillance for hepatocellular carcinoma

Figure 1 Representative cases according to ultrasonography and computed tomography findings. A: Ultrasonography shows scattered sub-centimeter-sized low echoic nodules; B: Arterial phase computed tomography (CT) scan shows a 5 mm sized low attenuated nodule in left lobe of liver; C: Ultrasonography shows a 7 mm sized hyperechoic nodule in right lobe of liver; D: Arterial phase CT scan shows a 5 mm sized high attenuated nodule in right lobe of liver.