Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No significant interval change . The enteric tube is unchanged in position and post pyloric . Left lower lobe opacity more conspicuous since the prior exam and is consistent with pneumonia in the appropriate clinical situation . No right lower lobe pneumonia . Mild increased right lower lobe opacities is likely overlapping of normal structures . No effusion , edema , or pneumothorax . Heart is normal in size . The mediastinum is not widened .
    OUTPUT:
    
Left lower lobe pneumonia .