Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A single - lead pacemaker terminates in the right ventricle , as before . The heart is moderately enlarged . The mediastinal and hilar contours appear stable . The lungs appear clear . There is no pleural effusion or pneumothorax . The right hemidiaphragm is mildly elevated compared to the left . The bones are probably demineralized .
    OUTPUT:
    
Stable cardiomegaly . No evidence of acute cardiopulmonary disease .