Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Interval decrease in the opacity involving the medial right lower lung zone . No pleural effusion or pneumothorax identified . Minimal left basilar atelectasis . The size of the cardiomediastinal silhouette is within normal limits .
    OUTPUT:
    
Interval decrease in the opacity involving the medial right lower lung zone . No new focal opacity / consolidation .