Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are patchy left perihilar and left lower lobe opacities consistent with pneumonia . Lung volumes are low compared to prior exam . There is a large hiatal hernia , which is unchanged ; however , pneumonia may be due to aspiration . There is mild cardiomegaly , unchanged . There are no pleural effusions or pneumothorax .
    OUTPUT:
    
1 . Left perihilar and left lower lobe pneumonia . 2 . Large hiatal hernia , which may be resulting in aspiration These findings were discussed with ___ by Dr . ___ ___ telephone at 3 :45 p .m .