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
All of the swelling moves with deglutition except: March 2012 
Select and explain. 
A. Thyroglossal cyst, B. Thyroid swelling, C. Branchial cyst, D. Tuberculous lymph nodes
C: Branchial cyst
Answer: C: Branchial cyst 
Explanation: Ans: C i.e. Branchial cyst Swellings which are adherent to the larynx and trachea moves on swallowing, e.g. thyroid swelling, thyroglossal cyst & subhyoid bursitis. Tuberculous & malignant lymph nodes when they become fixed to the larynx or trachea will also move on deglutition