Variant anatomy of hepatic vessels

Variant hepatic arterial anatomy:Usually the common hepatic artery arises from celiac artery. Variant hepatic arterial anatomy refers to variations of this. This includes the hepatic artery arising directly from the aorta or the superior mesenteric artery (SMA), the right hepatic artery arising from the SMA, or the left gastric artery arising from the left gastric artery.Variant hepatic venous anatomy:This refers to a variation in the venous anatomy of your liver. The most common variation is an accessory right inferior hepatic vein. This vein drains the posterior portion of the right liver lobe directly into the inferior vena cava (IVC).