Table 1. Classification of hepatic artery variations according to Michels and Hiatt.

Description	Michels type	Hiatt type
Normal anatomy	I	I
Replaced RHA from SMA	III	III
Replaced RHA and LHA	IV	IV
Accessory RHA	VI	III
CHA from SMA	IX	V

RHA, right hepatic artery; SMA, superior mesenteric artery; LHA, left hepatic artery; CHA, common hepatic artery.