What symptom is associated with mediastinal and subcutaneous emphysema?

The symptom associated with mediastinal and subcutaneous emphysema is the sensation of fullness around the neck. This occurs because air escapes from the lungs or trachea into the surrounding tissues, which can lead to swelling in the neck area. The collection of air creates pressure that can distort the normal anatomy, leading to noticeable swelling and a sensation of fullness.

In cases of mediastinal emphysema, the air trapped in the mediastinum can contribute to chest pain or discomfort, but the external visible symptom often associated with subcutaneous emphysema is the swelling or fullness that can be palpated around the neck and potentially the face as well. This condition requires prompt evaluation and management to address the underlying cause and alleviate the pressure.