Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The cardiac silhouette is enlarged . Retrocardiac lucency with air - fluid level is seen , consistent with a likely large hiatal hernia which may also be accentuating the cardiac silhouette size in part . The aorta is calcified and tortuous . There is prominence of the pulmonary vasculature consistent with moderate pulmonary edema . No large pleural effusion or pneumothorax is seen .
    OUTPUT:
    
1 . Large hiatal hernia which may in part be accentuating the cardiac silhouette , which appears larger in size as compared to the prior study , mild to moderately enlarged . 2 . Moderate pulmonary edema . No large pleural effusion .