This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Surgery
[{'content': 'All of the following are mid line swellings in neck, except \nSelect and explain. \nA. Branchial cyst, B. Sublingual dermoid cyst, C. Throglossal cyst, D. Subhyoid bursitis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: (A) Branchial cyst # DD of midline swellings of neck: Ludwigs angina; Enlarged submental lymph node; Sublingual dermoid cyst; Subhyoid bursitis; Thyroglossal cyst; Enlarged isthmus of thyroid gland; Pretracheal and prelaryngeal lymph nodes; Retrosternal goitre; Thymic swelling; Enlarged lymph nodes of lipoma in the suprasternal space of burns', 'role': 'assistant'}]