Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were performed . There is no pleural effusion , pneumothorax , or focal airspace consolidation . A linear opacity at the left lung base is unchanged , likely reflecting scarring . The heart size is normal . The hilar and mediastinal structures are unremarkable . Kyphoplasty changes are again seen in the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary process .