Surgery>>>>>The Gallbladder and Extrahepatic Biliary System
Question 2#

Anomalies of the hepatic artery and cystic artery are present in what percent of individuals:

A) 15%
B) 25%
C) 35%
D) 50%
E) 75%

Correct Answer is D


Variations in the anatomy of the cystic and hepatic arteries are exceedingly common, the "classical" anatomy only appearing in 50 to 60% of the population. The cystic artery is a branch of the right hepatic artery in 90% of individuals. The most common arterial anomaly of the portal arterial system is a replaced right hepatic artery originating from the superior mesenteric artery; this happens in 20% of persons.