Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were provided . The heart is mildly enlarged , though this is stable . Lungs are clear without signs of pneumonia or CHF . No effusion or pneumothorax is seen . The bony structures are intact . Mediastinal contour is stable . No free air below the right hemidiaphragm is seen .
    OUTPUT:
    
Mild cardiomegaly , stable . Otherwise , unremarkable exam .