Table 2 Summary of the prevalence of hepatic arterial anomalies in the study population
Number (N = 545) | Percentage | |
|---|---|---|
Hepatic arterial anomaly | ||
Normal | 376 | 69 |
Replaced LHA from LGA | 28 | 5.1 |
Replaced RHA from SMA | 40 | 7.3 |
Replaced RHA and LHA | 7 | 1.3 |
Accessory LHA | 55 | 10.1 |
Accessory RHA | 7 | 1.3 |
Replaced RHA and accessory LHA | 9 | 1.7 |
Common hepatic artery from SMA | 9 | 1.7 |
CHA from SMA with accessory LHA | 4 | 0.7 |
Celiacomesenteric trunk | 2 | 0.36 |
Replaced RHA from the celiac trunk | 4 | 0.73 |
Replaced RHA from aorta separately | 1 | 0.18 |
Accessory RHA from the celiac trunk | 1 | 0.18 |
Replaced RHA from the celiac trunk and accessory LHA | 1 | 0.18 |
Replaced RHA from the celiac trunk and CHA from LGA | 1 | 0.18 |
Hepatic vein anomalies | ||
Right hepatic vein anomalies | ||
Single RHV | 422 | 77.4 |
Early branching of RHV | 79 | 14.5 |
Two RHVs — common trunk | 33 | 6.1 |
Two RHVs — independent drainage | 9 | 1.7 |
Three RHVs — common trunk | 1 | 0.2 |
Three RHVs — independent drainage | 1 | 0.2 |
Accessory inferior right hepatic vein | ||
No accessory inferior right hepatic vein | 437 | 80.2 |
One accessory inferior right hepatic vein | 89 | 16.3 |
Two accessory inferior right hepatic veins | 19 | 3.5 |
LHV-MHV variants | ||
Common trunk | 418 | 76.3 |
Independent | 129 | 23.7 |
Portal vein anomalies | ||
Normal branching pattern | 442 | 81.1 |
Trifurcation | 88 | 16.1 |
Right anterior sectoral branch joining LPV (extrahepatic) | 6 | 1.1 |
Right anterior sectoral branch joining LPV (intrahepatic) | 3 | 0.6 |
Early separate origin of Segment VII from RPV | 2 | 0.4 |
Trifurcation of RPV | 3 | 0.5 |
Non-bifurcation of the RPV with small segmental branches | 1 | 0.2 |
Total | 545 | 100 |