University of Rwanda, Department of Surgery.
University of Rwanda, Clinical Anatomy Unit.
Afr Health Sci. 2022 Sep;22(3):697-702. doi: 10.4314/ahs.v22i3.74.
The knowledge of anatomy is essential for surgical safety and impacts positively on patients' outcomes. Surgeons operating on the liver and bile ducts should keep in mind the normal anatomy and its variations as the latter are common.
We conducted a structured surgical dissection course of the supra-colic compartment of the abdominal cavity on 2nd and 3rd October 2020. While dissecting a 46years-old male cadaver, we encountered unusual anatomical variations of the hepatic arterial branching, the biliary tree, and arterial supply to the common bile duct. The common hepatic artery was dividing into two branches: a common short trunk for the left hepatic artery and the right gastric artery (hepato-gastric trunk) and a common trunk for the right hepatic artery and gastroduodenal artery (hepato-gastroduodenal trunk). The right hepatic duct was duplicated with a main right hepatic duct and an additional smaller duct. The bile duct was supplied by an artery coming from the abdominal aorta.
We described three unusual anatomical variations: a variation of the hepatic arteries branching pattern, an aberrant right hepatic duct, and blood supply to the bile duct from the abdominal aorta. Surgeons should be aware of these rare variations.
解剖学知识对于手术安全至关重要，并对患者的治疗效果产生积极影响。对于肝脏和胆管手术，外科医生应该牢记正常的解剖结构及其常见的变异。
我们于 2020 年 10 月 2 日和 3 日进行了一次腹腔上结肠间隙的解剖课程。在解剖一位 46 岁男性尸体时，我们发现了肝动脉分支、胆道系统和胆总管动脉供应的异常解剖变异。肝总动脉分为两支：一支短干供应左肝动脉和胃右动脉（肝胃干），一支短干供应右肝动脉和胃十二指肠动脉（肝十二指肠干）。右肝管分为主右肝管和较小的副右肝管。胆管由来自腹主动脉的动脉供应。
我们描述了三种异常的解剖变异：肝动脉分支模式的变异、右肝管的异常和胆管来自腹主动脉的血供。外科医生应该注意到这些罕见的变异。
