Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Persistent lung hyperinflation with flattening of the hemidiaphragms . Previous opacity in the left midlung is similar in appearance to ___ . It seems to be related to a fracture of the left posterior ninth rib . No new focal consolidations , effusions , or pneumothorax . Cardiomediastinal silhouette is unchanged .
    OUTPUT:
    
Persistent opacity in the left mid lung , similar in appearance to ___ . It appears to be related to a fracture of the left posterior ninth rib . No clear correlate was present on the chest CT of ___ .