Chest X-ray shows opacity after blunt trauma, most likely diagnosis is –: (A) Haemothorax, (B) Pneumothorax, (C) Pneumonia, (D) Pulmonary embolism
Answer is A. Amongst the given options hemothorax and pneumonia (consolidation) produce opacity on chest X-ray. Pneumonia has nothing to do with blunt chest trauma, while hemothorax is common after blunt chest trauma. Therefore, best answer here is hemothorax.
Pneumothorax causes hypertranslucency (not opacity).