system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
PA view of chest X-ray is given here. What is the diagnosis?
assistant
The correct answer is  Given image is showing absent bronchioalveolar markings of right lung with tracheal shift towards left side which is suggestive of right pneumothorax. Pneumothorax: presence of air or gas in pleural cavity Also remember, Deep sulcus sign on supine chest X-ray in expiration phase is a feature of pneumothorax.