Communicating opening between greater sac and lesser sac?
Epiploic foramen (foramen of winslow or aditus to lesser sac) is a slit-like opening through which lesser sac communicates with greater sac. It is situated at the level of T12 veebra. Its boundries are :- Anterior :- Right free margin of lesser omentum (contains poal vein, hepatic aery proper and bile duct). Posterior :- IVC, right suprarenal gland and T12 veebra. Superior :- Caudate lobe of liver. Inferior :- 1 pa of duodenum and horizontal pa of hepatic aery.
Foramen of winslow
Foramen of Monro
Hepatorenal pouch
Pouch of Douglas