Ventilator-Associated Barotrauma (see [[Acute Lung Injury-ARDS]])
Bleomycin (see [[Bleomycin]])
Crack Cocaine (see [[Cocaine]])
Cryptogenic Organizing Pneumonia (see [[Cryptogenic Organizing Pneumonia]]): rarely presents with pneumomediastinum
Physiology
Path of Air Movement
Mediastinum (pneumomediastinum) -> Left and Right Pleural Space (causing [[Pneumothorax]]), Neck Soft Tissues (causing [[Subcutaneous Emphysema]]), or Peritoneum (causing [[Pneumoperitoneum]])
