This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Physiology
Posterior perforation of peptic ulcer drain into 
Select and explain. 
A. Greater sac, B. Paracolic gutter, C. Omental bursa, D. Foramen of Winslow
B: Paracolic gutter
Answer: B: Paracolic gutter 
Explanation: Posterior perforation of a gastric ulcer is a rare condition. ... However, ~5-8% of ulcers lie in the posteriorwall of the body of the stomach . When posterior gastric ulcerperforates, it usually penetrates into the lesser sac behind the stomach which is a omental bursa Ref ganong's review of medical physiology 25e p654