Validated preoperative computed tomography risk estimation for postoperative hepatocellular carcinoma recurrence

Figure 1 Tumor margins on the liver computed tomography map. A: Portovenous phase CT showing smooth margin at liver segment VI in a 36-year-old male patient without postoperative recurrence (dashed box); B: Portovenous phase CT showing focal extranodular type at liver segments V and VIII in a 38-year-old female patient with postoperative recurrence (dashed box); C: Portovenous phase CT showing multinodular type at liver segments V and VI in a 35-year-old male patient with postoperative recurrence (dashed box). CT: Computed tomography.

Figure 2 Tumor capsules on the liver computed tomography map. A: Equilibrium phase CT showing complete tumor capsule (red arrow) involvement at liver segment V in a 33-year-old male patient without postoperative recurrence (dashed box); B: Equilibrium phase CT showing incomplete tumor capsule (red arrow) at liver segments V and VI in a 57-year-old female patient with postoperative recurrence (dashed box); C: Equilibrium phase CT showing missing tumor capsule at liver segment VI in a 41-year-old male patient with postoperative recurrence (dashed box). CT: Computed tomography.