Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Known right hilar mass is not clearly delineated on today 's exam . Scarring seen in the right upper lung . Peripherally seen opacity in the left lower lung is no longer visualized . There is no new consolidation or effusion . The cardiomediastinal silhouette is stable . Healing posterior left fourth rib fracture is noted .
    OUTPUT:
    
No definite acute cardiopulmonary process .