Surgical management of liver diseases invading the hepatocaval confluence based on IH classification: The surgical guideline in our center

Figure 1 Classifications of liver lesions. A: Type I1H1; B: I2H1; C: I3H1; D: I1H2; E: I2H2. RHV: Right hepatic vein; LHV: Left hepatic vein; IVC: Inferior vena cava.

Figure 2 One patient with alveolar echinococcosis in the right lobe of liver. A: The IVC wall was totally occluded (longer black arrow); B and C: The azygos vein was dilated gradually (longer white arrows); D: The retrohepatic IVC was totally occluded, filled with organized thrombus (shorter white arrow). The shorter black arrow: IVC; E: Classification of this patient was I3H1. LHV: Left hepatic vein; IVC: Inferior vena cava; AE: Alveolar echinococcosis.