Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a moderate cardiomegaly and a large hiatal hernia . The lungs are clear . No pleural effusion or consolidation . Mildly tortuous descending thoracic aorta is noted . Heavily calcified aortic arch seen . Osseous structures are demineralized .
    OUTPUT:
    
Moderate cardiomegaly and a large hiatal hernia .