Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes with vascular crowding . The linear opacities within the mid lung fields bilaterally likely represent subsegmental atelectasis . No new focal consolidations . Persistent eventration of the right hemidiaphragm . The cardiomediastinal silhouette is stable . The pulmonary vasculature is normal . No pleural effusion or pneumothorax is seen .
    OUTPUT:
    
Low lung volumes with bibasilar atelectasis . No evidence of pneumonia .