This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
Second swallowing in barium meal studies is found in? 
Select and explain. 
A. Pharyngeal pouch, B. Achalasia cardia, C. Scleroderma, D. Reflux esophagitis
A: Pharyngeal pouch
Answer: A: Pharyngeal pouch 
Explanation: Ans. is 'a' i.e., Pharyngeal pouch