Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Study is limited by lordotic positioning . Lung volumes remain low . The cardiac , mediastinal and hilar contours are within normal limits . Pulmonary vasculature is normal . Minimal patchy bibasilar airspace opacities likely reflect areas of atelectasis . No focal consolidation , pleural effusion or pneumothorax is identified . There are no acute osseous abnormalities .
    OUTPUT:
    
Low lung volumes with bibasilar atelectasis .