Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: On the lateral view , a retrocardiac opacity is consistent with bronchiectasis and atelectasis as is noted on the prior CTs of the abdomen and pelvis which also cover the lung bases . The opacities are slightly improved from ___ . Cardiac size is stable . There is no pneumothorax , pleural effusion or pulmonary edema .
    OUTPUT:
    
Bibasilar atelectasis and bronchiectasis without evidence of pneumonia .