Signs and symptoms of spontaneous<unk>  vary based on the cause, but it is often associated with swelling of the neck and chest pain, and may also involve sore throat, neck pain, difficulty swallowing, wheezing and difficulty breathing. Chest X-rays may show air in the mediastinum, the middle of the chest cavity. A significant case of<unk>  is easy to detect by touching the overlying skin; it feels like tissue paper or Rice Krispies. Touching the bubbles causes them to move and sometimes make a crackling noise. The air bubbles, which are painless and feel like small nodules to the touch, may burst when the skin above them is palpated. The tissues surrounding<unk>  are usually swollen. When large amounts of air leak into the tissues, the face can swell considerably. In cases of<unk>  around the neck, there may be a feeling of fullness in the neck, and the sound of the voice may change. If<unk>  is particularly extreme around the neck and chest, the swelling can interfere with breathing. The air can travel to many parts of the body, including the abdomen and limbs, because there are no separations in the fatty tissue in the skin to prevent the air from moving.
Subcutaneous emphysema
Bronchophony
Tracheal deviation
Tracheobronchomegaly
Barrel chest
Visakhapatnam gas leak
Pleural friction rub
Grand Rounds