Surgery What is the most common cause of gastric outlet obstruction in a 4-week-old baby A Annular pancreas B Foreign body C Congenital hyperophic pyloric stenosis D Duodenel atresia 💡 Explanation What is the most common cause of gastric outlet obstruction in a 4-week-old baby ✓ Correct Answer: C. Congenital hyperophic pyloric stenosis