Figure 2

2a: Horizontal CT view of the neck at the level of suprasternal notch; the surgical emphysema and soft tissue swelling (arrows) is seen in the pretracheal region and prevertebral space and is extending beyond the carotid sheaths. In 2b (after 3 days of antibiotic therapy), the appearance of the disease process has changed (in comparison to 2a) with a decreasing amount of air in the soft tissues and replacement by an abscess (arrows) which has irregular enhancing margins.