Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are normal . There is no pleural effusion , pneumothorax or focal airspace consolidation worrisome for pneumonia . Linear atelectasis or scarring is again seen in the right mid lung . The heart is normal size . The mediastinal hilar structures are unremarkable . Old left - sided rib fractures and a healed left mid clavicular fracture are noted .
    OUTPUT:
    
No acute cardiopulmonary process .