This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Abdomen and pelvis, Subject name: Anatomy
Superior relationship of omental foramen is 
Select and explain. 
A. Hepatoduodenal ligament, B. Inferior vena cava, C. Caudate lobe of liver, D. 1st pa of duodenum
C: Caudate lobe of liver
Answer: C: Caudate lobe of liver 
Explanation: Omental foramen(epiploic foramen, foramen of Winslow ) has following border: anterior: the free border of the lesser omentum, known as the hepatoduodenal ligament. This has two layers and within these layers are the common bile duct, hepatic aery, and hepatic poal vein. posterior: the peritoneum covering the inferior vena cava superior: the peritoneum covering the caudate lobe. of the liver. inferior: the peritoneum covering the commencement of the duodenum and the hepatic aery, the latter passing forward below the foramen before ascending between the two layers of the lesser omentum. left lateral: gastrosplenic ligament and splenorenal ligament. ref - BDC 6e vol2 pg240