Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size , mediastinal and hilar contours are normal . Lungs are clear except for unchanged minimal biapical scarring . Small pleural effusions are present bilaterally .
    OUTPUT:
    
1 . No radiographic evidence of pneumonia . 2 . Small bilateral pleural effusions , also present on recent abdominal CT .