What chest X-ray findings are classic for a pneumothorax?

What chest X-ray findings are classic for a pneumothorax?

• A. Increased vascular markings throughout both lungs.
• B. Bilateral interstitial edema.
• C. Clear lungs with prominent diaphragms.
• D. Absence of lung markings peripheral to a visceral pleural line; hyperlucent hemithorax; mediastinal shift in tension pneumothorax.

Answer: (D)