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 moderately enlarged . Mediastinal contours are stable and the aortic knob is calcified . The right costophrenic angle is not fully included on the frontal view . On the lateral view , there is no evidence of pleural effusion . No pneumothorax is seen . There is no definite focal consolidation .
    OUTPUT:
    
Persistent enlargement of the cardiac silhouette without pulmonary edema . No definite pleural effusion . No focal consolidation seen to suggest pneumonia .