7/1/23, 5:02 AM Pneumomediastinum Pathway Feedback Search Clinical Topics Home Findings Pneumomediastinum Pneumomediastinum More common causes Chronic obstructive pulmonary disease Asthma Facial fracture Pneumocystis jirovecii infection Acute respiratory distress syndrome Less common causes Mediastinitis Lung abscess Esophageal perforation Small bowel perforation Uncommon causes Complications of bronchoscopy Thoracic trauma Complications of tracheostomy Spontaneous pneumomediastinum Large bowel perforation https://web.pathway.md/findings/recodEeLZqaQMYVK3 1/2 7/1/23, 5:02 AM Pneumomediastinum Pathway Gastric perforation Complications of positive pressure ventilation Endotracheal intubation https://web.pathway.md/findings/recodEeLZqaQMYVK3 2/2