Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal silhouette is stable from the prior exam . There is mild to moderate pulmonary vascular engorgement and bibasilar opacities , seen predominantly at the bases concerning for mild to moderate pulmonary edema . Increased opacity at the base of the right lung could represent infection in the appropriate clinical setting . There is no evidence of pleural effusion or pneumothorax .
    OUTPUT:
    
Mild to moderate pulmonary edema . Increased opacity at the base of the right lung could represent infection in the appropriate clinical setting .