Air in<unk>  tissue does not usually pose a lethal threat; small amounts of air are reabsorbed by the body. Once the pneumothorax or pneumomediastinum that causes the<unk>  is resolved, with or without medical intervention, the<unk>  will usually clear. However, spontaneous<unk>  can, in rare cases, progress to a life-threatening condition, and<unk>  due to mechanical ventilation may induce ventilatory failure.
Subcutaneous emphysema
Bronchophony
Tracheal deviation
Tracheobronchomegaly
Barrel chest
Visakhapatnam gas leak
Pleural friction rub
Grand Rounds