Background: Pneumomediastinum is an abnormal accumulation of air within the mediastinum. Herein. we report a rare case in which a patient initially developed pneumomediastinum and extensive subcutaneous emphysema after bronchoscopic bronchioloalveolar lavage (BAL). The condition then progressed to abdominal compartment syndrome leading to death. https://cosmeticssquadets.shop/product-category/heel-balm/