Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low bilateral lung volumes . Bibasilar atelectasis . No focal consolidation or pneumothorax identified . The size and appearance of the cardiac silhouette is mildly enlarged but unchanged . Minimal lucency along the medial right hemidiaphragm equivocal for tiny amount of residual intraperitoneal air versus basal pulmonary air delineated by adjacent atelectasis .
    OUTPUT:
    
Minimal subdiaphragmatic lucency along the medial right hemi diaphragm could reflect a tiny amount of residual free air or basal pulmonary air delineated by adjacent atelectasis . Minimal bibasilar atelectasis .