Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left pacemaker with leads in the expected location of the right atrium and right ventricle unchanged . Mild cardiomegaly is unchanged from ___ . A large hiatal hernia is not significantly changed from ___ , but larger compared to ___ . No focal consolidation , pleural effusion or pneumothorax . Interval resolution of pulmonary edema from ___ .
    OUTPUT:
    
1 . Clear lungs . 2 . Stable mild cardiomegaly and large hiatal hernia .