Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate cardiomegaly is unchanged . The mediastinal and hilar contours appear stable . There are no pleural effusions or pneumothorax . There is patchy posterior opacity probably in the left lower lobe . Elsewhere , the lungs appear clear . Bony structures are unremarkable .
    OUTPUT:
    
1 . New patchy opacity in the left lower lobe worrisome for pneumonia in the appropriate setting . 2 . Moderate cardiomegaly .