This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous (Neck), Subject name: Surgery
[{'content': 'Thyroglossal fistula develops due to: \nSelect and explain. \nA. Developmental anomaly, B. Injury, C. Incomplete removal of thyroglossal cyst, D. Inflammatory disorder', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. (c) Incomplete removal of thyroglossal cystRef: Bailey and Love 26th edition, Page 701Thyroglossal fistula:* Presents as midline discharging sinus.* It is never Congenital - Always acquired.* Caused by Infection, Inadequate removal or TG cyst or Inappropriate I and D by mistake.* Complete excision of tract with Central part of hyoid bone is the TOC (Sistrunk Operation)', 'role': 'assistant'}]