What is the differential diagnosis of pneumothorax?

Pneumothorax needs to go to the chest surgery department of the hospital for chest X-ray, or chest CT examination. If no lung texture area is observed, and the arc line of pneumothorax is inward; it is easy to be confused with pulmonary bullae. If pneumothorax is diagnosed, thoracic puncture can be carried out to extract air, and antibiotics and analgesics can be used for treatment.