Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A frontal upright view of the chest was obtained portably . Lungs are mildly hyperinflated , unchanged . Since two days ago , there are new bibasilar opacities , which may represent atelectasis , aspiration or infection . Bi-apical pleuroparenchymal scarring , right worse than left , is unchanged . No pleural effusion or pneumothorax . Cardiac and mediastinal silhouettes are stable . Moderate dextroscoliosis is unchanged . An old healed left rib fracture is seen .
    OUTPUT:
    
Bibasilar opacities , new from ___ , may represent atelectasis , aspiration , or infection .