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
[{'content': 'Hyoid bone is closely associated to: September 2012 \nSelect and explain. \nA. Bronchogenic cyst, B. Cystic hygroma, C. Thyroglossal cyst, D. Ranula', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. C i.e. Thyroglossal cystThyroglossal cystMC site:- Beneath the hyoid,Occupies the midline usually (except in the region of thyroid cailage),Swelling moves upwards on protrusion of the tongue as well as on swallowing (attachment with foramen caecum),Painless', 'role': 'assistant'}]