Question 1#

The percentage of patients who will have an occurrence of a replaced right hepatic artery is:

A. 1-2%
B. 5-10%
C. 15-20%
D. 20-25%

Correct Answer is C


In 15 to 20% of patients, the right hepatic artery will arise from the superior mesenteric artery and travel upward toward the liver along the posterior aspect of the head of the pancreas (referred to as a replaced right hepatic artery). It is important to look for this variation on preoperative computed tomographic (CT) scans and in the operating room (OR) so the replaced hepatic artery is recognized and injury is avoided.