Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral chest radiographs are provided . There is no focal consolidation , pleural effusion , or pneumothorax . Bibasilar opacities most likely represent atelectasis . The heart is top normal in size . The imaged upper abdomen is unremarkable .
    OUTPUT:
    
Bibasilar atelectasis . Otherwise , no acute cardiopulmonary process .