Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear with no evidence of pneumonia or pulmonary edema . The heart is moderately enlarged , but stable . Prominence of the left lateral , bibasilar pleural margin represents extrapleural fat . Mediastinal and hilar contours are normal . Calcified aortic knob is seen . There is generalized bony demineralization .
    OUTPUT:
    
No evidence of pneumonia or pulmonary edema . Mild cardiomegaly .