Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are symmetrically well expanded and well aerated , without focal consolidation concerning for pneumonia , pleural effusion or pneumothorax . Bibasilar prominence of interstitial markings is unchanged from ___ . There is no overt pulmonary edema . Mild biapical scarring is symmetrical and unchanged . The cardiomediastinal and hilar contours are within normal limits . No acute osseous abnormality is detected .
    OUTPUT:
    
No acute cardiopulmonary process .