The term pneumomediastinum describes what condition?

Pneumomediastinum refers to the presence of air in the mediastinum, the central compartment of the thoracic cavity situated between the lungs. This condition can occur due to various causes, including trauma, barotrauma, or spontaneous rupture of airways. Symptoms may include chest pain, dyspnea, and subcutaneous emphysema. Treatment often involves addressing the underlying cause and may require observation or intervention in more severe cases.