Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is normal in size . The mediastinal and hilar contours appear within normal limits . Pathcy opacities in the left lower lobe suggest pneumonia , perhaps best depicted on the lateral view . Elsewhere , the lungs appear clear . There is no pleural effusion or pneumothorax . Bony structures are unremarkable .
    OUTPUT:
    
Left lower lobe opacity worrisome for pneumonia in the appropriate clinical setting . Follow - up radiographs are recommended to show resolution .