This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Larynx, Subject name: ENT
[{'content': 'Most common malignancy arising in the thyroglossal cyst is \nSelect and explain. \nA. Follicular, B. Papillary, C. Medullary, D. Anaplastic', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Thyroglossal CystContains clear to a cloudy fluid with sparse cellularityThe cystic background contains few if any epithelial cellsSome inflammatory cells and crystals might be presentRarely malignant transformation occurs in about 1% of the casesMost common malignancy arising is papillary carcinoma followed by squamous cell carcinomaRef: PL Dhingra, Diseases of Ear, Nose & Throat, 7th edition, pg no. 378 - 379', 'role': 'assistant'}]