Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes cause bronchovascular crowding and bibasilar platelike atelectasis . In addition , there is ill - defined airspace opacity in the medial right lung base , which may represent aspiration . There is no pulmonary edema , pleural effusion , or pneumothorax . Surgical clips overlie the lateral right neck consistent with provided history of recent carotid endarterectomy .
    OUTPUT:
    
Low lung volumes causing bibasilar atelectasis with superimposed right medial lung airspace opacity possibly representing aspiration .