Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a small right apical pneumothorax , which is unchanged in size . There is increased opacification at the right midlung and right base , which may represent increasing pleural effusion layering and tracking within the minor fissure . There is right basilar compressive atelectasis . Cardiomediastinal silhouette is stable . The pulmonary vasculature is normal .
    OUTPUT:
    
1 . Unchanged size of the small right apical pneumothorax . 2 . Increased opacification within the right lung , which likely represents a moderate sized layering right pleural effusion with compressive atelectasis .