This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Peritoneum & GI Tract, Subject name: Anatomy
Foramen of Winslow is posteriorly related to? 
Select and explain. 
A. Duodenum, B. Liver, C. Pancreas, D. IVC
D: IVC
Answer: D: IVC 
Explanation: Ans. d (IVC). (Ref. BD Chaurasia, Human Anatomy-Vol II, 3rd ed., 76)Foramen of Winslow/Epiploic foramen/Aditus to lesser sac# It is a vertical slit-like opening through which lesser sac communicates with greater sac# It is situated behind right free margin of lesser omentum at level of T2.# Boundaries:BordersEpiploic foramenAnteriorlyRight free margin of lesser sac omentum(containing portal vein, hepatic artery & bile duct)PosteriorlyIVC, suprarenal gland & T12 vertebraSuperiorlyCaudate process of liverInferiorly1st part of duodenum & horizontal part of hepatic artery.# Internal hernia into lesser sac can occur through it.