Figure 1

Computed tomography images showing: (A) Subcutaneous emphysema with retrosomatic (lower left arrow) and pectoral musculature gas dissection (upper right arrow), air in the infrahyoid visceral cervical space with separation of thyroid lobe vascular structures (central arrow); (B) Large subcutaneous emphysema in the anterior chest wall (upper right arrow). Gas dissection of the peribronchial cuff in the context of pneumomediastinum (lower left arrow); (C) Presence of air in the retrocrural space. Subcutaneous emphysema, mainly in the anterior chest wall. Pneumoperitoneum with perihepatic distribution (lower right arrow); (D) Subcutaneous emphysema with oblique muscle dissection and anterior pneumoperitoneum (upper right arrows). Small air bubbles below the vesicular bed (upper left arrow).