A patient with low grade fever and weight loss has poor excursion on the right side of the chest with decreased fremitus, flatness to percussion, and decreased breath sounds all on the right. The trachea is deviated to the left. Which of the following is the most likely diagnosis? 1- Pneumothorax 2- Pleural effusion 3- Consolidated pneumonia 4- Atelectasis 5- COPD From: Pre Test Medicine 12th