Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart appears moderately enlarged . Atherosclerotic calcifications are noted at the aortic arch . There is also a retrocardiac rounded structure with an air - fluid level consistent with a moderate hiatal hernia . Otherwise , the lungs are without a focal consolidation . There is no pleural effusion or pneumothorax . Osseous structures are grossly unremarkable .
    OUTPUT:
    
1 . Moderate cardiomegaly . 2 . Moderate hiatal hernia .