Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Unchanged elevation of the left hemidiaphragm . Mild unchanged blunting of the right costophrenic angle which may reflect atelectasis . There is no pleural effusion or pneumothorax identified . The appearance of the cardiomediastinal silhouette is unchanged . Two suture wires projecting over the left hemithorax are unchanged .
    OUTPUT:
    
Minimal atelectasis at the right lung base .