A 7-year-old boy presented with a painless lump that appeared while coughing on the right side of his neck. He had noticed this lump three days ago. The boy was otherwise healthy with no significant past medical history. He did not complain of fever, dyspnea, coryza, dysphonia, dysphagia, or facial congestion. His anthropometric measurements were within the normal range. A non-tender fusiform swelling measuring 3x3 was observed on his right side, which appeared only while coughing, anterior to the sternocleidomastoid muscle (Image A).
His oropharyngeal examination, too, was normal. USG images (Figure B) and MRI scans of his neck (Figure C) have been provided. What can be the most probable diagnosis for this young boy? *This Case Challenge is from the Editorial Team of Docplexus and is meant for educational purposes only. Source: Bhattacharya D et al. Case Reports in Pediatrics, Volume…
