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 is no pleural effusion . Mild right base atelectasis is seen without definite focal consolidation . Mediastinal contours are stable . No overt pulmonary edema is seen .
    OUTPUT:
    
Mild enlargement of the cardiac silhouette without overt pulmonary edema or pleural effusion .