Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable frontal chest radiograph was performed . An endotracheal tube is in satisfactory position , 4 cm above the carina . A left pectoral dual lead pacemaker is unremarkable . There are bilateral perihilar opacities with prominence of the pulmonary interstitium , consistent with mild to moderate pulmonary edema . There is no definite pleural effusion . The heart size is mildly enlarged . There is no pneumothorax . Consolidation posterior to the cardiac silhouette is presumably atelectasis , although , aspiration would be difficult to exclude .
    OUTPUT:
    
1 . Satisfactory endotracheal tube position . 2 . Mild to moderate pulmonary edema .