What caused an otherwise healthy 23-year-old man to suddenly develop a large painless mass on the left side of his neck? That's what Jianyong Zhang, MD, and Xin Zhu, MM, of Guizhou Provincial People's ...

A 12-year-old girl was brought to her pediatrician by her parents for reevaluation of a midline neck mass that, as far as the patient and her parents could recall, "had been present for a long time." ...

With roughly 80% of jobs being sedentary, often requiring several hours of sitting stooped in front of a computer screen, neck pain is a growing occupational hazard. Smartphones and other devices have ...