A 62-year-old man experienced a common cold for 7 days. He presented to the clinic with a 2-day history of anterior neck pain and swelling. His body temperature was 37.4°C, and a soft, well-defined mass was palpated in the midline near the hyoid bone (Fig. 1A). Slight erythema and tenderness were noted at the same site. A contrast-enhanced neck computed tomography (CT) was performed (Fig. 1B).
