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
[{'content': 'Boyce sign is seen in \nSelect and explain. \nA. Epiglottis, B. Zenkers diveiculum, C. Plummer-Vinson syndrome, D. Barretts esophagus', 'role': 'user'}, {'content': "Answer: B \nExplanation: 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", 'role': 'assistant'}]