Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . This accentuates the size of the cardiac silhouette which is likely within normal limits . The mediastinal and hilar contours are unremarkable . There is no pulmonary edema . Linear opacities in the lung bases are compatible subsegmental atelectasis . No focal consolidation , pleural effusion or pneumothorax is present . There are no acute osseous abnormalities .
    OUTPUT:
    
Bibasilar subsegmental atelectasis in the setting of low lung volumes .