This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General Surgery, Subject name: Surgery
[{'content': "A 40 years old female presents with fever, fatigue, diffuse painful swelling in the midline of the neck. FNAC revealed epitheloid cells & giant cells. What is the most likely diagnosis? \nSelect and explain. \nA. Acute thyroiditis, B. Subacute thyroiditis, C. Tubercular lymphadenitis, D. Hashimoto's thyroiditis", 'role': 'user'}, {'content': "Answer: B \nExplanation: Subacute Thyroiditis Aka DE QUERVAIN'S thyroiditis Aka Viral thyroiditis Aka Granulomatous thyroiditis Aka Giant cell thyroiditis Characterized byUpper respiratory tract infection caused by virus| leading to Granulomatous inflammation | leading toFollicular destruction & giant cell formation Associated with HLA B-35 NSAIDS to control inflammation", 'role': 'assistant'}]