Replaced right hepatic artery arising from abdominal aorta: a case report

Introduction. Common hepatic artery is one of the three branches of Haller tripod and gives rise to the left and right hepatic arteries. We describe the case of a 62-year-old woman with the right hepatic artery rising from abdominal aorta, diagnosed incidentally during an abdominal computed tomography angiography. Case report. The common hepatic artery was absent. In its place, the left hepatic artery originated from the celiac trunk, while the right replaced hepatic artery was observed arising directly from the abdominal aorta. Conclusions. The uncommon abnormal vascular pattern presented has not been yet classified as an anatomic variation. Such arterial aberrations should be considered by surgeons during cholecystectomy, liver transplantation and pancreatectomy, to avoid complications.