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当前学科：内科住院医师
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女性，45岁。颈前区肿大，伴疼痛3天。1周前有上呼吸道感染史，查体：双侧甲状腺肿大，质地韧，有压痛。辅助检查：血沉快，T3、T4升高，摄碘率下降。可初步诊断为（）
A
桥本甲状腺炎
B
亚急性非化脓性甲状腺炎
C
急性化脓性甲状腺炎
D
慢性硬化性甲状腺炎
E
结节性甲状腺肿
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