Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac , mediastinal and hilar contours are normal . The pulmonary vasculature is normal . Low lung volumes are present , with mild bibasilar patchy opacities which likely atelectasis . No focal consolidation , pleural effusion or pneumothorax is present . No acute osseous abnormalities identified .
    OUTPUT:
    
Minimal patchy bibasilar opacities likely atelectasis in the setting of low lung volumes .