Abstract
Hepatic biliary injury is one of the most common complications in cholecystectomy and is frequently accompanied by arterial injuries. Because there are several anatomical variations of the hepatic ducts, including the accessory hepatic ducts (AHDs), it is important to consider not only the anatomical position of the hepatic ducts but also those of the AHDs in cholecystectomy. However, the topographical relationships between the AHDs and the hepatic arteries are still poorly understood. In the present study we show that AHDs were observed in 7 out of 59 (11.9%) of the cadavers. There was a single AHD in the 6 out of the 7 cadavers and double AHDs in one. In these cases, the right AHDs emerged from the anterior medial segment of the liver piercing the parenchyma, while the left AHDs emerged directly from the anterior part of the caudate lobe. The right AHDs ran anterior to the right hepatic artery, while the left AHDs ran posterior to the hepatic arteries. The topographical relationship between the AHD and the hepatic artery system was thus reversed in the cases of the right and the left AHDs.
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Abbreviations
- AHD:
-
Accessory hepatic duct
- CA:
-
Cystic artery
- CBD:
-
Common bile duct
- CD:
-
Cystic duct
- CHA:
-
Common hepatic artery
- CHD:
-
Common hepatic duct
- CT:
-
Celiac trunk
- GdA:
-
Gastroduodenal artery
- HD:
-
Hepatic duct
- IPdA:
-
Inferior pancreaticoduodenal artery
- LGA:
-
Left gastric artery
- LHA:
-
Left hepatic artery
- LHD:
-
Left hepatic duct
- MHA:
-
Middle hepatic artery
- PHA:
-
Proper hepatic artery
- PSPdA:
-
Posterior superior pancreaticoduodenal artery
- PV:
-
Portal vein
- RGA:
-
Right gastric artery
- RHA:
-
Right hepatic artery
- RHD:
-
Right hepatic duct
- RPSHD:
-
Right posterior sectorial hepatic duct
- SA:
-
Splenic artery
- SdA:
-
Supraduodenal artery
- SMA:
-
Superior mesenteric artery
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Acknowledgements
We are grateful to Dr. N. Higashi (Professor Emeritus, Kanazawa Medical University) for his expert advice and technical assistance.
Funding
This work was supported in part by the Japan Society for the Promotion of Science, a Grant-in-Aid for Scientific Research (KAKENHI: Grant 19H04212).
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Tanaka, T., Nakada, T., Ito, T. et al. Topographical relationship between the accessory hepatic duct and the hepatic artery system. Anat Sci Int 96, 112–118 (2021). https://doi.org/10.1007/s12565-020-00568-6
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DOI: https://doi.org/10.1007/s12565-020-00568-6