🚨 Pathology: Tension pneumothorax 🩻 What the X-ray shows • Hyperlucent hemithorax with absent lung markings • Collapsed lung margin • Depressed hemidiaphragm on the affected side • Mediastinal shift to the opposite side → indicates pressure under tension (Based on the L marker, this is a RIGHT-sided tension pneumothorax) 🫁 What’s happening Air enters the pleural space and cannot escape → rising intrathoracic pressure → lung collapse compression of heart & great vessels → ↓ venous return → obs