Aberrant right hepatic artery vena cava fistula: a case report.

An unusual case of visceral arterial venous fistula between an aberrant right hepatic artery and the inferior vena cava is presented. A critical review of the anatomic relationships in this location offers a plausible explanation to account for the rarity of this type of fistula. The second issue deals with the ligation of the hepatic artery. We caution against hepatic artery ligation, especially when dealing with an aberrant right hepatic artery.