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𝐍𝐞𝐰 𝐈𝐦𝐚𝐠𝐞 𝐂𝐡𝐚𝐥𝐥𝐞𝐧𝐠𝐞! 一名 6 岁男孩被带到诊所，有 2 年病史，表现为前颈部无压痛、可活动的正中线肿块，伸舌和吞咽时向上移动。体格检查如图所示。最可能的诊断是什么？提交你的答案并看看其他人如何作答：https://nej.md/IC09242026
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𝐍𝐞𝐰 𝐈𝐦𝐚𝐠𝐞 𝐂𝐡𝐚𝐥𝐥𝐞𝐧𝐠𝐞!
A 6-year-old boy is brought to clinic with a 2-year history of a nontender, mobile midline mass of the anterior neck which moves up with tongue protrusion and swallowing. Physical exam is shown. What is the most likely diagnosis? Submit your answer and see how others responded: https://nej.md/IC09242026
来源：NEJM · x.com