Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The inspiratory lung volumes are decreased from the prior study with mild streaky opacification of the bilateral lower lobes , most likely representing mild atelectasis . No focal consolidation concerning for pneumonia , pleural effusion , or pneumothorax is detected . The cardiac silhouette is moderately enlarged with a globular shape , which is unchanged from the prior study . The mediastinal and hilar contours are within normal limits . The pulmonary vasculature is not engorged and there is no pulmonary edema . A left pectoral pacemaker is in place with two leads terminating in the right atrium and right ventricle , respectively . The visualized upper abdomen is unremarkable .
    OUTPUT:
    
1 . No acute cardiopulmonary process . 2 . Mild bibasilar atelectasis . 3 . Cardiomegaly .