This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pharynx, Subject name: ENT
Boyce sign is seen in 
Select and explain. 
A. Epiglottis, B. Zenkers diveiculum, C. Plummer-Vinson syndrome, D. Barretts esophagus
B: Zenkers diveiculum
Answer: B: Zenkers diveiculum 
Explanation: Zenkers diveiculum - A Zenker&;s diveiculum, also pharyngeal pouch, is a diveiculum of the mucosa of the human pharynx, just above the cricopharyngeal muscle. It is a pseudo diveiculum. Boyce sign:- Boyce's sign, a gurgling sound due to noise of splashing fluid accumulated in a large Zenker's diveiculum, can be heard on palpation. Although small diveicula might not cause symptoms, larger diveicula are usually symptomatic and surgery could be warranted. Ref:- Dhingra; pg num:-275