Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are normal . There is no focal consolidation , effusion , or pneumothorax . Mediastinal and hilar contours are normal . Heart size , now mildly enlarged , has increased from prior study .
    OUTPUT:
    
1 . No evidence of pneumonia . 2 . Mild cardiomegaly , appears increased from prior study .