Subcutaneous and mediastinal emphysema has decreased, and the linear area of radiolucency along the left border of the heart has diminished.

A marked crackling subcutaneous emphysema was evident over the right and left chest and back, as far down as the costal margin. It extended upward through the neck and face as high as the temples.

Chest radiograph at 8 hours of age showing the pneumomediastinum, the left-sided pneumothorax, and the extensive subcutaneous emphysema on both sides of the neck.

Trevor, a 4-year-old pooch, had subcutaneous emphysema, a condition in which air gets trapped under the skin.

Extensive subcutaneous emphysema may lead to a significantly prolonged hospital stay, cosmetic problems, and even death without timely treatment. However, the risk factors for it have been poorly ...