system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Lesser sac of stomach is bounded by:
assistant
The correct answer is  A. i.e. Posterior wall of stomach - Lesser sac/ Omental bursa is bounded anteriorly by stomach, caudate lobe of liver, lesser omentum & greater omentum (ant. 2 layers); and posteriorly by structures forming stomach bed (i.e. diaphragm, pancreas, spleen etc) & greater omentum (posterior 2 layers) Lesser sac or omental bursa is the site for abscess formation in posterior perforation of gastric ulcer and internal hernia through epiploic foramen