Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The appearance of the right lung is unchanged with opacification of the right apex , residual pleural effusion and atelectasis . The opacity previously described in the left lung base has cleared . There is minimal linear atelectasis in the medial left lung base . Slight rightward deviation of the mediastinum is unchanged . Subcutaneous emphysema along the right lateral chest wall . The endotracheal tube and right chest tubes are unchanged .
    OUTPUT:
    
Unchanged appearance of the right lung as described above . The previously described opacity at the left lung base has cleared .