Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest chest demonstrate normal heart size . Pulmonary vascularity is normal . The cardiomediastinal silhouette and hilar contours are normal . The lungs are clear . No pleural effusion or pneumothorax . No displaced rib fracture identified .
    OUTPUT:
    
No evidence of pneumonia .