SECTION EDITOR: C. DOUGLAS PHILLIPS, MD
A 10-year-old boy presented with a 6-week history of a left-sided neck mass. He was otherwise healthy and had no history of dysphagia, dyspnea, or stridor. Clinical examination revealed a 4 × 5-cm, soft, nonfluctuant, nontender mass extending from the angle of mandible to the clavicle on the left side. Doppler ultrasonography identified a large, dilated, fluid-filled mass adjacent to the left lobe of the thyroid gland and the left common carotid artery, extending into the superior mediastinum.
Visvanathan V, Wynne DM, Clement W. Radiology Quiz Case 3. Arch Otolaryngol Head Neck Surg. 2011;137(7):719. doi:10.1001/archoto.2011.97-a