Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomediastinal silhouette is unchanged . Lungs are hyperinflated . There is no pleural effusion or pneumothorax . Increased retrocardiac opacity corresponding to bandlike opacity overlying the cardiac border , most consistent with recurrent lingular collapse . No definite focal consolidation .
    OUTPUT:
    
Bandlike opacity projecting over the cardiac silhouette , suggestive of lingular collapse . No definite pneumonia .