Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . There is linear bibasilar atelectasis . No focal consolidation is identified . There is no pneumothorax or pleural effusion . The heart size is difficult to assess due to bibasilar atelectasis . The mediastinal silhouette and hilar contours are normal .
    OUTPUT:
    
Hypoinflated lungs with linear bibasilar atelectasis , but no findings to suggest pneumonia .