Diagnosis is:
High-Yield Explanation
Ans. C Right hydropneumothoraxCXR shows lucent (black) lateral aspect of right hemithorax with air fluid level in it-s/o hydropneumothorax. An expiratory CXR better than an inspiratory CXR for a diagnosis of pneumothorax. CT Thorax is IOC for pneumo/hydro- pneumothorax.