Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The cardiac silhouette is mildly enlarged . There are perihilar opacities concerning for mild pulmonary edema . Alternatively , findings could be due to an atypical infection depending on the clinical scenario . No pleural effusion or pneumothorax is seen .
    OUTPUT:
    
Cardiomegaly and likely mild pulmonary edema . Overlying atypical infection is not excluded in the appropriate clinical setting , but felt less likely .