Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison to the chest radiograph obtained 3 days prior , no significant changes are appreciated . Lungs are fully expanded and clear without consolidations or suspicious pulmonary nodules . Heart size is normal . Cardiomediastinal and hilar silhouettes are normal . No pleural abnormalities .
    OUTPUT:
    
No radiographic evidence of pneumonia or other significant cardiopulmonary abnormalities