Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild cardiomegaly is stable . Mediastinal contours are otherwise unremarkable . There is mild pulmonary edema with small bilateral pleural effusions and bibasilar and perihilar opacities . No pneumothorax .
    OUTPUT:
    
Edema with small bilateral pleural effusions . Bibasilar and perihilar opacities may reflect congestion and atelectasis , but infection is not excluded .