Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is evidence of emphysema as well as fibrotic changes at both lung bases , not significantly changed compared to the prior study from ___ . As before , suture chain is seen at the left apex . There are no focal consolidations concerning for an infectious process . The cardiac and mediastinal contours are stable . No definite pleural effusions are seen . There is no pneumothorax .
    OUTPUT:
    
No acute cardiac or pulmonary process .