Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size , mediastinal and hilar contours are within normal limits and without change . Stable tortuosity of the thoracic aorta . Lungs are well expanded and grossly clear except for biapical pleural and parenchymal scarring , stable since ___ . There are no pleural effusions . Focal eventration of right hemidiaphragm is incidentally noted . Bones are diffusely demineralized .
    OUTPUT:
    
No radiographic evidence of pneumonia .