True about the relation of epiploic foramen is -

Boundaries of the lesser sac are:- Anterior:- Right free margin of lesser omentum (contains portal vein, hepatic artery proper and bile duct). Posterior:- IVC, right suprarenal gland and T12 vertebra. Superior:- a Caudate lobe of the liver. Inferior:- 1st part of duodenum and horizontal part of the hepatic artery.