From where can the right hepatic artery originate, and what is its frequency?

The right hepatic artery typically originates most commonly from the celiac trunk, which is involved in supplying the liver with blood. The frequency of this occurrence is approximately 25%. The possibility of the right hepatic artery arising from the superior mesenteric artery (SMA) is much less common, occurring in about 17% of individuals. This variant is of surgical significance because anatomical variations can affect surgical planning, especially in procedures involving the liver, pancreas, or surrounding structures.

Other options highlight various rare origins of the right hepatic artery—such as from the left gastric artery, which occurs in around 15% of people, and from the renal artery at about 10%. While it is essential to be aware of these less common origins, they are not the most typical anatomical variations with the right hepatic artery. Understanding these frequencies helps surgeons anticipate and manage potential complications during procedures.