Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are low . The hilar and mediastinal contours are normal . The heart size is normal . No focal consolidations concerning for pneumonia are identified . There is mild bibasilar atelectasis . There is no pleural effusion or pneumothorax . The visualized osseous structures are unremarkable .
    OUTPUT:
    
No acute intrathoracic abnormalities identified .