Fig. 2

Intraoperative finding of a rare variation of hepatic artery derived from the GDA. A The CHA gave of two branches at superior border of pancreatic head, the one rose medial to CBD and extended to porta hepatis was regarded as PHA, and the other descended along pancreatic head was regarded as GDA. B The GDA was ligated at the origin from CHA. C A rare variation of hepatic artery (red arrow) derived from the GDA, passed in front of the CBD, distributed into the right liver lobe and was considered an aberrant RHA. D The aberrant RHA (red arrow) had accidentally sacrificed due to untimely ligature of GDA. PHA proper hepatic artery, GDA gastroduodenal artery, CHA common hepatic artery, CBD common bile duct, RHA right hepatic artery