Common hepatic artery thrombosis after iatrogenic injury in pancreaticodudenectomy operation, unexpected course.

•Pancreatic resection is the only effective treatment with prolonged survival in operable pancreatic cancer and peri-ampullary cancer.•We report here a case of common hepatic artery injury during pancreaticodudenectomy followed by complete thrombosis after its repair.•Surprisingly liver enzymes and bilirubin start to improve in post operatively due to small hardly detected accessory left and middle hepatic artery.